Category: oxazolidine

PHOX-Based Phosphite-Oxazoline Ligands for the Enantioselective Ir-Catalyzed Hydrogenation of Cyclic β-Enamides was written by Magre, Marc; Pamies, Oscar; Dieguez, Montserrat. And the article was included in ACS Catalysis on August 5,2016.Recommanded Product: (S)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol The following contents are mentioned in the article:

Simple Ir-PHOX-based phosphite-oxazoline catalysts were successfully applied in the asym. hydrogenation of cyclic β-enamides providing better enantioselectivities than previous effective Ru and Rh catalysts. This protocol gave 2-aminotetralines and 3-aminochromanes, key structural units found in many therapeutic agents and biol. active natural products, in high chem. yields and enantioselectivities (ee’s up to 99%). High enantioselectivities also were achieved in the hydrogenation of cyclic α-enamides. This study involved multiple reactions and reactants, such as (S)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol (cas: 135948-04-8Recommanded Product: (S)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol).

(S)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol (cas: 135948-04-8) belongs to oxazolidine derivatives. Oxazolidines are well known as key portions of bioactive molecules or precursors of chiral molecules, as well as established chiral auxiliaries. Oxazolidines are well known as key portions of bioactive molecules or precursors of chiral molecules, as well as established chiral auxiliaries.Recommanded Product: (S)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol

135948-04-8;(S)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol;The future of 135948-04-8;New trend of C13H17NO2;function of 135948-04-8

Synthesis of chiral aryloxazoline hydroaluminum and its asymmetric reduction for ketones was written by Wu, Hai-Chen; Xu, Dong-Cheng; Hua, Wen-Ting. And the article was included in Huaxue Xuebao on August 31,2001.Reference of 163165-92-2 The following contents are mentioned in the article:

Title compounds I (R = (CH3)2CHCH2, (CH3)2CH, C6H5CH2) as chiral ligands, were prepared A new type of title compounds I modified lithium aluminum hydride reducing agents (DIOAL-H) were prepared, which exhibited moderate enantioselectivity in the reduction of different ketones, R2COCH3 (R2 = C6H5, 2-naphthyl, CH3(CH2)3). This study involved multiple reactions and reactants, such as (S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-92-2Reference of 163165-92-2).

(S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-92-2) belongs to oxazolidine derivatives. Oxazolidine-based compounds have started to attract attention also in the medicinal and materials chemistry fields. Oxazolidines are commonly used as metal ligands in asymmetric catalysis, synthetic intermediates in organic synthesis, and also used as the protecting groups.Reference of 163165-92-2

163165-92-2;(S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol;The future of 163165-92-2;New trend of C16H15NO2;function of 163165-92-2

Chiral Pd-, Cu- and Ni-chelates and their utilities as catalysts in allylic acetoxylation of alkenes was written by Yang, Hu; Khan, Masood A.; Nicholas, Kenneth M.. And the article was included in Journal of Molecular Catalysis on July 29,1994.Related Products of 150699-10-8 The following contents are mentioned in the article:

A series of chiral ML*2 complexes of Pd, Cu and Ni [L = 2-trifluoroacetylcamphorato (tfacam), (R)-N-α-methylbenzylsalicylaldimine, 2-(2′-phenolato)-4-substituted oxazoline (phenox)] were prepared and characterized, including x-ray structures of Pd(tfacam)2 (1) and Pd(4-Ph-phenox)2 (3a). The Pd- and Cu-chelates are active (pre)catalysts for the allylic acetoxylation of alkenes. The yields and chemoselectivities in these reactions are high but little enantioselectivity (0-5%) was found. Several mechanistic probes, including tests of the stability of the product and PdL*2 under the reaction conditions, the product distribution from the acetoxylation of D-1-cyclohexene, and the low acetolysis reactivity of LPd(η3-allyl), indicate the intervention of (η3-allyl)-Pd intermediates in the catalytic process in which either or both L groups dissociate or at least dechelate in the product-forming step. This study involved multiple reactions and reactants, such as (R)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol (cas: 150699-10-8Related Products of 150699-10-8).

(R)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol (cas: 150699-10-8) belongs to oxazolidine derivatives.Oxazolidines are readily available also from propargyl amines. In another report, the incorporation of an additional substituted oxazolidine ring over a range of new biphenylazepinium salt organocatalysts for the asymmetric epoxidation of alkenes improved enantiocontrol over the parent structures.Related Products of 150699-10-8

150699-10-8;(R)-2-(4-(tert-Butyl)-4,5-dihydrooxazol-2-yl)phenol;The future of 150699-10-8;New trend of C13H17NO2;function of 150699-10-8

Chiral Pd-, Cu- and Ni-chelates and their utilities as catalysts in allylic acetoxylation of alkenes was written by Yang, Hu; Khan, Masood A.; Nicholas, Kenneth M.. And the article was included in Journal of Molecular Catalysis on July 29,1994.Quality Control of (R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol The following contents are mentioned in the article:

A series of chiral ML*2 complexes of Pd, Cu and Ni [L = 2-trifluoroacetylcamphorato (tfacam), (R)-N-α-methylbenzylsalicylaldimine, 2-(2′-phenolato)-4-substituted oxazoline (phenox)] were prepared and characterized, including x-ray structures of Pd(tfacam)2 (1) and Pd(4-Ph-phenox)2 (3a). The Pd- and Cu-chelates are active (pre)catalysts for the allylic acetoxylation of alkenes. The yields and chemoselectivities in these reactions are high but little enantioselectivity (0-5%) was found. Several mechanistic probes, including tests of the stability of the product and PdL*2 under the reaction conditions, the product distribution from the acetoxylation of D-1-cyclohexene, and the low acetolysis reactivity of LPd(η3-allyl), indicate the intervention of (η3-allyl)-Pd intermediates in the catalytic process in which either or both L groups dissociate or at least dechelate in the product-forming step. This study involved multiple reactions and reactants, such as (R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol (cas: 150699-08-4Quality Control of (R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol).

(R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol (cas: 150699-08-4) belongs to oxazolidine derivatives.Oxazolidines are readily available also from propargyl amines. Oxazolidines are cyclic condensation products of β-amino alcohols and aldehydes or ketone, and they undergo a facile and complete hydrolysis in aqueous solution. Alterations in carbonyl moiety control the rate of formation of a given β-amino alcohol. Oxazolidines are weaker bases (pKa 6–7) than parent β-amino alcohols and found to be more lipophilic than the parent compound at physiological pH.Quality Control of (R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol

150699-08-4;(R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol;The future of 150699-08-4;New trend of C15H13NO2;function of 150699-08-4

Chiral-Auxiliary-Mediated Asymmetric Synthesis of Tris-Heteroleptic Ruthenium Polypyridyl Complexes was written by Gong, Lei; Mulcahy, Seann P.; Harms, Klaus; Meggers, Eric. And the article was included in Journal of the American Chemical Society on July 22,2009.Related Products of 1045894-43-6 The following contents are mentioned in the article:

A strategy for the asym. synthesis of chiral-at-metal [Ru(pp)(pp’)(pp”)]+ complexes (Hpp = isopropyl-2-(2′-hydroxyphenyl)oxazoline, pp’ and pp” = achiral 2,2′-bipyridine, 5,5′-dimethyl- and 4,4′-di-tert-butyl-2,2′-bipyridine), is reported. The method employs isopropyl-2-(2′-hydroxyphenyl)oxazolines as chiral auxiliaries, which serve in their deprotonated forms as strong bidentate ligands that provide excellent asym. induction in the coordination chem. and, importantly, can afterward become substituted with complete retention of configuration in the presence of acid. This study involved multiple reactions and reactants, such as (R)-2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)phenol (cas: 1045894-43-6Related Products of 1045894-43-6).

(R)-2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)phenol (cas: 1045894-43-6) belongs to oxazolidine derivatives. Oxazolidines that are the precursor to bisoxazolidines are in effect mono-oxazolidines. They are also used as moisture scavengers in polyurethane and other systems. Oxazolidines are commonly used as metal ligands in asymmetric catalysis, synthetic intermediates in organic synthesis, and also used as the protecting groups.Related Products of 1045894-43-6

1045894-43-6;(R)-2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)phenol;The future of 1045894-43-6;New trend of C12H15NO2;function of 1045894-43-6

Aerobic C(sp2)-H Hydroxylations of 2-Aryloxazolines: Fast Access to Excited-State Intramolecular Proton Transfer (ESIPT)-Based Luminophores was written by Goebel, Dominik; Clamor, Nils; Lork, Enno; Nachtsheim, Boris J.. And the article was included in Organic Letters on July 19,2019.Category: oxazolidine The following contents are mentioned in the article:

The direct hydroxylation of 2-aryloxazolines via a deprotonative magnesiation using TMPMgCl·LiCl and subsequent oxidation with mol. oxygen or air as a green oxidant is reported. This method proceeds under mild conditions at room temperature with high regioselectivity and chemoselectivity. The obtained phenols exhibit tunable luminescence properties, induced by excited-state intramol. proton transfer. This method opens a new opportunity for the sustainable synthesis of luminescent organic mols. This study involved multiple reactions and reactants, such as 2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-91-1Category: oxazolidine).

2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-91-1) belongs to oxazolidine derivatives. Oxazolidines are commonly obtained by reaction of strained heterocycles, mainly aziridines. Oxazolidines are cyclic condensation products of β-amino alcohols and aldehydes or ketone, and they undergo a facile and complete hydrolysis in aqueous solution. Alterations in carbonyl moiety control the rate of formation of a given β-amino alcohol. Oxazolidines are weaker bases (pKa 6–7) than parent β-amino alcohols and found to be more lipophilic than the parent compound at physiological pH.Category: oxazolidine

163165-91-1;2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)phenol;The future of 163165-91-1;New trend of C11H13NO2;function of 163165-91-1

2-[(4R)-4,5-dihydro-4-R-2-oxazolyl]phenyl diphenylphosphonate, and synthesis method and application thereof was written by Luo, Mei. And the patent was published on July 20,2011.SDS of cas: 1045894-43-6 The following contents are mentioned in the patent:

Title compound as shown formula I is synthesized by allowing to react 2-cyanophenol with d-amino alc. in O2-free anhydrous chlorobenzene in the presence of ZnCl2 under refluxing for 24 h to obtain 2-[(4R)-4,5-dihydro-4-R-2-oxazolyl]phenol, and then allowing to react with diphenylphosphonyl chloride in O2-free anhydrous toluene-triethylamine under refluxing for 24 h, wherein R = -CH2CH(CH3)2, -CH(CH3)2, Ph, or -CH2Ph. The compound can be used as chiral catalyst and shows good catalytic activity and high enantioselectivity during asym. synthesis of 2-methylbenzaldehyde. This study involved multiple reactions and reactants, such as (R)-2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)phenol (cas: 1045894-43-6SDS of cas: 1045894-43-6).

(R)-2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)phenol (cas: 1045894-43-6) belongs to oxazolidine derivatives. Oxazolidines that are the precursor to bisoxazolidines are in effect mono-oxazolidines. They are also used as moisture scavengers in polyurethane and other systems. Chiral oxazolidines are widely used as chiral auxiliaries, chiral ligands, protecting and/or directing groups in a variety of asymmetric transformations, thanks also to their easy cleavage or their further elaboration possibilities.SDS of cas: 1045894-43-6

Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Chiral phosphoramidate compound used as chiral catalyst was written by Luo, Mei. And the patent was published on May 25,2011.Application In Synthesis of (S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol The following contents are mentioned in the patent:

The invention relates to chiral phosphoramidate compound as shown in formula I, wherein R is -CH2CH(CH3)2 or -CH(CH3)2 or -CH2Ph. Title chiral phosphoramidate compound is prepared by allowing to react 2-cyanophenol with L-amino alc. in chlorobenzene solvent for 24 h under water-free and oxygen-free conditions and refluxing in the presence of anhydrous ZnCl2 as catalyst to obtain 2-[(4S)-4,5-dihydro-4-R-2-oxazolinyl]phenol intermediate, then reacting with phenylphosphonyl dichloride in toluene-triethylamine solvent under refluxing for 24 h. The inventive product can be used as chiral catalyst, showing fine catalytic activity and high enantioselectivity in asym. cyanosilylation of 2-methylbenzaldehyde. This study involved multiple reactions and reactants, such as (S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-92-2Application In Synthesis of (S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol).

(S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-92-2) belongs to oxazolidine derivatives. Oxazolidines that are the precursor to bisoxazolidines are in effect mono-oxazolidines. They are also used as moisture scavengers in polyurethane and other systems. Some reports highlighted again the effectiveness of oxazolidine-based compounds in driving the stereo- or diastereotopic outcome of chemical reactions.Application In Synthesis of (S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol

Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

Preparation of 2-substituted oxazoline derivative was written by Lu, Zhan; Xi, Tuo; Mei, Yuncai. And the patent was published on May 25,2016.Related Products of 163165-92-2 The following contents are mentioned in the patent:

The invention discloses a method for preparing 2-substituted oxazoline derivative of formula I via reaction of II and III in the presence of palladium catalysts, ligand and a base, wherein R1 is C1-6 alkyl, OH, CN, etc.; R2, R3, and R4 are aryl, C1-6 alkyl, or cycloalkyl; Y is N or C; X halo or halo-like group. The invention provides a route for efficiently and rapidly synthesizing the 2-substituted oxazoline compound, which uses the catalytic amount of palladium and ligand, so that the reaction can be carried out at a high yield and high adaptability, has stereochem. specificity, and can prepare the enantiomer-purity 2-substituted oxazoline compound This study involved multiple reactions and reactants, such as (S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-92-2Related Products of 163165-92-2).

(S)-2-(4-Benzyl-4,5-dihydrooxazol-2-yl)phenol (cas: 163165-92-2) belongs to oxazolidine derivatives. Oxazolidines are commonly obtained by reaction of strained heterocycles, mainly aziridines. Oxazolidines are well known as key portions of bioactive molecules or precursors of chiral molecules, as well as established chiral auxiliaries.Related Products of 163165-92-2

Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem

2-[(4R)-4,5-dihydro-4-R-2-oxazolyl]phenyl diphenylphosphonate, and synthesis method and application thereof was written by Luo, Mei. And the patent was published on July 20,2011.Recommanded Product: 150699-08-4 The following contents are mentioned in the patent:

Title compound as shown formula I is synthesized by allowing to react 2-cyanophenol with d-amino alc. in O2-free anhydrous chlorobenzene in the presence of ZnCl2 under refluxing for 24 h to obtain 2-[(4R)-4,5-dihydro-4-R-2-oxazolyl]phenol, and then allowing to react with diphenylphosphonyl chloride in O2-free anhydrous toluene-triethylamine under refluxing for 24 h, wherein R = -CH2CH(CH3)2, -CH(CH3)2, Ph, or -CH2Ph. The compound can be used as chiral catalyst and shows good catalytic activity and high enantioselectivity during asym. synthesis of 2-methylbenzaldehyde. This study involved multiple reactions and reactants, such as (R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol (cas: 150699-08-4Recommanded Product: 150699-08-4).

(R)-2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenol (cas: 150699-08-4) belongs to oxazolidine derivatives. Oxazolidines are commonly obtained by reaction of strained heterocycles, mainly aziridines. Oxazolidines are commonly used as metal ligands in asymmetric catalysis, synthetic intermediates in organic synthesis, and also used as the protecting groups.Recommanded Product: 150699-08-4

Referemce:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem