for helpful discussions of the mass spectra. We are indebted to the National Science Foundation for funds to purchase the Atlas CH-4B (Grant GB4939) and Atlas SM-1B (NSF Grant No. GP-6979).Polarity Effects in the Solvolysis of Steroid Derivatives. The Synthesis and Acetolysis of 6a-Tosyloxy-3a-and -SjS-chloro-Sa-cholestane1
Umsetzung des 3β‐Tosyloxy‐A5‐cholestens (I) mit Natriumborhydrid/Bortrifluoridätherat in Tetrahydrofuran (12 Stdn. bei 25°C unter Stickstoff) und anschließend mit Wasserstoffperoxid/Natronlauge (1 Std. bei 25°C) ergeben 3β‐Tosyloxy‐6a‐hydroxy‐5a‐cholestan (III) (80% Ausbeute), Hydrolyse von (III) mit Kaliumcarbonat/T1iäthylammoniumchlorid in Dimethylformamid 3a‐Chlor‐6a‐hydroxy‐5a‐cholestan (IV) (65%).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.