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Facile Barton-McCombie deoxygenation of alcohols with tetrabutylammonium peroxydisulfate and formate ion
(Chemical Equation Presented) A new method for efficient radical deoxygenation of alcohols is described for preparing bulk chemicals avoiding scale-up problems. Treatment of various thiocarbonyl derivatives with (Bu 4N)2S2O8 and HCO2Na in DMF afforded the corresponding deoxygenated products in excellent yields. The deoxygenation appears to be initiated by the transfer of a single electron to thiocarbonyl derivatives from CO2?- rather than from SO4?-.
Hee, Sock Park,Hee, Yoon Lee,Yong, Hae Kim
p. 3187 - 3190
(2007/10/03)

Marine sterols. XXI. Isolation of (24S)-3β-hydroxyergost-5-en-21-oic acid from a Sclerophytum sp. of soft coral
The lipid extract of the Sclerophytum sp. of soft coral, collected off the coast of the Andaman and Nicobar Islands, afforded a new sterol 1a. The structure of 1a was shown to be (24S)-3β-hydroxyergost-5-en-21-oic acid, the first member of a class of mari
Kobayashi,Haribabu,Anjaneyulu
p. 233 - 234
(2007/10/02)