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16251-45-9 Usage


(4S,5R)-(-)-4-METHYL-5-PHENYL-2-OXAZOLIDINONE is a white crystalline compound with a specific molecular structure. It is an organic compound that belongs to the class of oxazolidinones, which are known for their diverse range of applications in various industries.


Used in Pharmaceutical Industry:
(4S,5R)-(-)-4-METHYL-5-PHENYL-2-OXAZOLIDINONE is used as an intermediate compound for the synthesis of other pharmaceutically relevant molecules. Its unique structure allows it to be a key component in the development of new drugs with potential therapeutic applications.
Used in Chemical Synthesis:
(4S,5R)-(-)-4-METHYL-5-PHENYL-2-OXAZOLIDINONE is used as a building block in the synthesis of various organic compounds. Its versatility in chemical reactions makes it a valuable asset in the creation of new molecules with specific properties and functions.
Used in Research and Development:
(4S,5R)-(-)-4-METHYL-5-PHENYL-2-OXAZOLIDINONE is utilized in research and development for the exploration of new chemical reactions and the discovery of novel compounds with potential applications in various fields, including pharmaceuticals, materials science, and agrochemicals.

Check Digit Verification of cas no

The CAS Registry Mumber 16251-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,5 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16251-45:
89 % 10 = 9
So 16251-45-9 is a valid CAS Registry Number.

16251-45-9 Well-known Company Product Price

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  • Aldrich

  • (340529)  (4S,5R)-(−)-4-Methyl-5-phenyl-2-oxazolidinone  99%

  • 16251-45-9

  • 340529-1G

  • 1,366.56CNY

  • Detail
  • Aldrich

  • (340529)  (4S,5R)-(−)-4-Methyl-5-phenyl-2-oxazolidinone  99%

  • 16251-45-9

  • 340529-5G

  • 3,818.88CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017


1.1 GHS Product identifier

Product name (4S,5R)-(-)-4-Methyl-5-phenyl-2-oxazolidinone

1.2 Other means of identification

Product number -
Other names (4S,5R)-4-Methyl-5-phenyloxazolidin-2-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:16251-45-9 SDS

16251-45-9Relevant articles and documents

Enantioconvergent Cu-Catalyzed Radical C-N Coupling of Racemic Secondary Alkyl Halides to Access α-Chiral Primary Amines

Cheng, Jiang-Tao,Dong, Xiao-Yang,Gu, Qiang-Shuai,Li, Zhong-Liang,Liu, Juan,Liu, Xin-Yuan,Luan, Cheng,Wang, Fu-Li,Wang, Li-Lei,Yang, Ning-Yuan,Zhang, Yu-Feng

supporting information, p. 15413 - 15419 (2021/09/30)

α-Chiral alkyl primary amines are virtually universal synthetic precursors for all other α-chiral N-containing compounds ubiquitous in biological, pharmaceutical, and material sciences. The enantioselective amination of common alkyl halides with ammonia is appealing for potential rapid access to α-chiral primary amines, but has hitherto remained rare due to the multifaceted difficulties in using ammonia and the underdeveloped C(sp3)-N coupling. Here we demonstrate sulfoximines as excellent ammonia surrogates for enantioconvergent radical C-N coupling with diverse racemic secondary alkyl halides (>60 examples) by copper catalysis under mild thermal conditions. The reaction efficiently provides highly enantioenrichedN-alkyl sulfoximines (up to 99% yield and >99% ee) featuring secondary benzyl, propargyl, α-carbonyl alkyl, and α-cyano alkyl stereocenters. In addition, we have converted the masked α-chiral primary amines thus obtained to various synthetic building blocks, ligands, and drugs possessing α-chiral N-functionalities, such as carbamate, carboxylamide, secondary and tertiary amine, and oxazoline, with commonly seen α-substitution patterns. These results shine light on the potential of enantioconvergent radical cross-coupling as a general chiral carbon-heteroatom formation strategy.

Tandem copper and photoredox catalysis in photocatalytic alkene difunctionalization reactions

Reed, Nicholas L.,Herman, Madeline I.,Miltchev, Vladimir P.,Yoon, Tehshik P.

supporting information, p. 351 - 356 (2019/02/20)

Oxidative alkene difunctionalization reactions are important in synthetic organic chemistry because they can install polar functional groups onto simple non-polar alkene moieties. Many of the most common methods for these reactions rely upon the reactivity of pre-oxidized electrophilic heteroatom donors that can often be unstable, explosive, or difficult to handle. Herein, we describe a method for alkene oxyamination and diamination that utilizes simple carbamate and urea groups as nucleophilic heteroatom donors. This method uses a tandem copper–photoredox catalyst system that is operationally convenient. The identity of the terminal oxidant is critical in these studies. Ag(I) salts proved to be unique in their ability to turn over the copper cocatalyst without deleteriously impacting the reactivity of the organoradical intermediates.

Chiral 1,3,2-Diazaphospholenes as Catalytic Molecular Hydrides for Enantioselective Conjugate Reductions

Miaskiewicz, Solène,Reed, John H.,Donets, Pavel A.,Oliveira, Caio C.,Cramer, Nicolai

supporting information, p. 4039 - 4042 (2018/03/13)

Secondary 1,3,2-diazaphospholenes have a polarized P?H bond and are emerging as molecular hydrides. Herein, a class of chiral, conformationally restricted methoxy-1,3,2-diazaphospholene catalysts is reported. We demonstrate their catalytic potential in asymmetric 1,4-reductions of α,β-unsaturated carbonyl derivatives, including enones, acyl pyrroles, and amides, which proceeded in enantioselectivities of up to 95.5:4.5 e.r.

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