124696-44-2

Basic information

• Product Name: (22E,24R)-7α-Hydroxy-5α-ergost-2,22-dien-6-one
• CAS NO: 124696-44-2
• Molecular Weight: 412.656
• Mol File: 124696-44-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (22E,24R)-7α-Hydroxy-5α-ergost-2,22-dien-6-one(CAS DataBase Reference)
• NIST Chemistry Reference: (22E,24R)-7α-Hydroxy-5α-ergost-2,22-dien-6-one(124696-44-2)
• EPA Substance Registry System: (22E,24R)-7α-Hydroxy-5α-ergost-2,22-dien-6-one(124696-44-2)

Safety Data

• Hazardous Substances Data: 124696-44-2(Hazardous Substances Data)

Upstream product

• 3152-46-3 (22E,24R)-3α,5-Cyclo-5α-ergost-7,22-dien-6-one 
• 124696-42-0 (22E,24R)-6-Trimethylsiloxy-3α,5-cyclo-5α-ergost-6,22-diene 
• 2774-59-6 i-Ergosterol 
• 3037-46-5 (22E,24R)-3α,5-Cyclo-5α-ergosta-7,22-dien-6-one 
• 124696-43-1 (22E,24R)-7α-Hydroxy-3α,5-cyclo-5α-ergost-22-en-6-one 

Relevant articles and documents

Studies on Steroidal Plant-Growth Regulators: A New Synthesis of Brassinosteroids

Two brassinosteroids (stereoisomers of brassinolide), (22R,23R,24R)-2α,3α,22,23-tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one (2) and (22S,23S,24R)-2α,3α,22,23-tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one (3), were synthesized from ergosterol in eight steps in ca. 30percent overall yield.The key step is the highly regioselective formation of the 7-oxalactone ring by oxidation of an enol silyl ether with 3-chloroperoxybenzoic acid.