634188-85-5

Basic information

• Product Name: (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one-4-ylidenepentane nitrile
• Synonyms: (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one-4-ylidenepentane nitrile
• CAS NO: 634188-85-5
• Molecular Weight: 403.548
• Mol File: 634188-85-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one-4-ylidenepentane nitrile(CAS DataBase Reference)
• NIST Chemistry Reference: (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one-4-ylidenepentane nitrile(634188-85-5)
• EPA Substance Registry System: (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one-4-ylidenepentane nitrile(634188-85-5)

Safety Data

• Hazardous Substances Data: 634188-85-5(Hazardous Substances Data)

Upstream product

• 51591-75-4 cis-1,3-dibenzyl-2-oxoimidazolidine-4,5-dicarboxylic acid 
• 26511-17-1 1,3,5-tribenzyl-2,4,6-trioxopyrrolo<3,4-d>imidazoline 
• 634188-84-4 (3aS,6R,6aR)-1,3,5-tribenzyl-6-hydroxytetrahydro-4H-pyrrolo[3,4-d]imidazole-2,4(1H)-dione 
• 100-46-9 benzylamine 
• 28092-62-8 (3aS,6aR)-1,3-dibenzyltetrahydro-1H-furo[3,4-d]imidazole-2,4-dione 
• 6727-75-9 5-iodovaleronitrile 
• 28092-52-6 (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazole-2,4-dione 

Downstream Products

• 31099-31-7 (3aS,4S,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]imidazole-2(3H)-one-4-ylpentane nitrile 
• 58-85-5 biotin 

Relevant articles and documents

Synthetic Studies on d-Biotin, Part 6:1 An Expeditious and Enantiocontrolled Approach to the Total Synthesis of d-Biotin via a Polymer-Supported Chiral Oxazaborolidine-Catalyzed Reduction of meso-Cyclic Imide Strategy

An efficient and highly enantioselective synthesis of d-biotin from the known cis-1,3-dibenzyl-2-imidazolidone-4,5-dicarboxylic acid (5) was accomplished in 48% overall yield. The key reactions in the sequence involve the catalytic enantioselective reduction of meso-cyclic imide 6 using polymer-supported chiral oxazoborolidine, derived from (S)-α,α -diphenylprolinol and polymer-bound sulfonyl chloride, and the installation of the C5 side chain at C4 in the thiolactone 9 via a Ni/C-catalyzed Fukuyama coupling reaction.