263764-32-5

Basic information

• Product Name: (2S,3R)-1-[(4S)-4-benzyl-2-thioxo-thiazolidin-3-yl]-3-hydroxy-2-methyl-pent-4-en-1-one
• Synonyms: (2S,3R)-1-[(4S)-4-benzyl-2-thioxo-thiazolidin-3-yl]-3-hydroxy-2-methyl-pent-4-en-1-one
• CAS NO: 263764-32-5
• Molecular Weight: 321.464
• Mol File: 263764-32-5.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: (2S,3R)-1-[(4S)-4-benzyl-2-thioxo-thiazolidin-3-yl]-3-hydroxy-2-methyl-pent-4-en-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: (2S,3R)-1-[(4S)-4-benzyl-2-thioxo-thiazolidin-3-yl]-3-hydroxy-2-methyl-pent-4-en-1-one(263764-32-5)
• EPA Substance Registry System: (2S,3R)-1-[(4S)-4-benzyl-2-thioxo-thiazolidin-3-yl]-3-hydroxy-2-methyl-pent-4-en-1-one(263764-32-5)

Safety Data

• Hazardous Substances Data: 263764-32-5(Hazardous Substances Data)

Upstream product

• 3182-95-4 L-Phenylalaninol 
• 63-91-2 L-phenylalanine 
• 171877-39-7 (S)-4-benzylthiazolidin-2-thione 
• 107-02-8 acrolein 
• 263764-23-4 (S)-3-propanoyl-4-benzyl-1,3-thiazolidine-2-thione 

Relevant articles and documents

Synthesis and diastereoselective aldol reactions of a thiazolidinethione chiral auxiliary

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Studies towards the total synthesis of narbonolide: stereoselective preparation of the C1-C10 fragment

An efficient stereoselective synthesis of the C1-C10 fragment of narbonolide is reported. The stereocentres at C2, 3, 4, 5, 8 and 9 in fragment 5 can be generated via an iterative asymmetric acyl-thiazolidinethione aldol reaction, whereas the stereocentre

Asymmetric aldol additions: Use of titanium tetrachloride and (-)-sparteine for the soft enolization of N-acyl oxazolidinones, oxazolidinethiones, and thiazolidinethiones

Asymmetric aldol additions using chlorotitanium enolates of N-acyloxazolidinone, oxazolidinethione, and thiazolidinethione propionates proceed with high diastereoselectivity for the Evans or non-Evans syn product depending on the nature and amount of the base used. With 1 equiv of titanium tetrachloride and 2 equiv of (-)-sparteine as the base or 1 equiv of (-)-sparteine and 1 equiv of N-methyl-2-pyrrolidinone, selectivities of 97:3 to >99:1 were obtained for the Evans syn aldol products using N-propionyl oxazolidinones, oxazolidinethiones, and thiazolidinethiones. The non-Evans syn aldol adducts are available with the oxazolidinethione and thiazolidinethiones by altering the Lewis acid/amine base ratios. The change in facial selectivity in the aldol additions is proposed to be a result of switching of mechanistic pathways between chelated and nonchelated transition states. The auxiliaries can be reductively removed or cleaved by nucleophilic acyl substitution. Iterative aldol sequences with high diastereoselectivity can also be accomplished.