67869-31-2

Upstream product

• 1721-78-4 hederagenin methyl ester 
• 79542-22-6 hederagenin methyl ester monoxanthate 
• 508-02-1 Oleanolic acid 
• 1724-17-0 oleanolic acid methyl ester 
• 98-88-4 benzoyl chloride 
• 140612-20-0 (4aS,6aS,6bR,8aR,9R,10S,12aR,14bS)-10-Benzoyloxy-2,2,6a,6b,9,12a-hexamethyl-9-methylsulfanylthiocarboxyoxymethyl-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acid methyl ester 

Relevant academic research and scientific papers

The invention of radical reactions. Part XXXI. Diphenylsilane: A reagent for deoxygenation of alcohols via their thiocarbonyl derivatives, deamination via isonitriles, and dehalogenation of bromo- and iodo- compounds by radical chain chemistry

Various thionocarbonates and xanthates of alcohols and bis-xanthates of vic-diols are readily deoxygenated to the corresponding hydrocarbons or olefins, while bromides and iodides are dehalogenated with diphenylphenylsilane in good yield.

The Invention of Radical Reactions. Part XXI. Simple Methods for the Radical Deoxygenation of Primary Alcohols.

Novel radical-chain deoxygenations of primary alcohols are described.The alcohols are acylated with the reagents pentafluorophenyl chlorothionoformate, 2,4,6-trichlorophenyl chlorothionoformate and 4-fluorophenyl chlorothionoformate and the intermediate thionocarbonates are deoxygenated with tributyltin hydride, triphenylsilane, diphenylsilane or phenylsilane in high-yielding reactions.Key Words: Thionocarbonates, Tributyltin hydride, Triphenylsilane, Diphenylsilane, Phenylsilane, Radical deoxygenations.