205743-79-9

Basic information

• Product Name: (3aS,4S,5R,7aR)-6-Benzenesulfonyl-5-[(tert-butyl-dimethyl-silanyl)-ethynyl]-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-4-ol
• Synonyms: (3aS,4S,5R,7aR)-6-Benzenesulfonyl-5-[(tert-butyl-dimethyl-silanyl)-ethynyl]-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-4-ol
• CAS NO: 205743-79-9
• Molecular Weight: 448.656
• Mol File: 205743-79-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (3aS,4S,5R,7aR)-6-Benzenesulfonyl-5-[(tert-butyl-dimethyl-silanyl)-ethynyl]-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-4-ol(CAS DataBase Reference)
• NIST Chemistry Reference: (3aS,4S,5R,7aR)-6-Benzenesulfonyl-5-[(tert-butyl-dimethyl-silanyl)-ethynyl]-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-4-ol(205743-79-9)
• EPA Substance Registry System: (3aS,4S,5R,7aR)-6-Benzenesulfonyl-5-[(tert-butyl-dimethyl-silanyl)-ethynyl]-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-4-ol(205743-79-9)

Safety Data

• Hazardous Substances Data: 205743-79-9(Hazardous Substances Data)

Upstream product

• 87057-40-7 (+/-)-trans-2,3-bis(phenylsulfonyl)-7-oxabicyclo[2.2.1]hept-5-ene 
• 86318-61-8 (tert-butyldimethylsilyl)acetylene 
• 214278-38-3 5,6-exo-(isopropylidenedioxy)-2-phenylsulfonyl-7-oxabicyclo[2.2.1]hept-2-ene 

Downstream Products

• 205743-82-4 (3aS,4S,7aR)-6-Benzenesulfonyl-5-[(tert-butyl-dimethyl-silanyl)-ethynyl]-2,2-dimethyl-3a,4,7,7a-tetrahydro-benzo[1,3]dioxol-4-ol 

Relevant articles and documents

The 7-oxabicyclo[2.2.1]heptane system as a valuable starting material for the synthesis of modified A ring vitamin D3 analogues

A totally stereoselective synthesis of an analogue of the A ring fragment of vitamin D3 has been achieved in optically pure form starting from a 7-oxanorbomenic disulfone. The key step is the alkylative cleavage of the oxygen bridge to produce a highly oxygenated cyclohexenyl sulfone.