Retention alcohol groups, prim

Cerium (IV)-Nafion 511lsodium brornate Ketones from sec. alcohols Retention of prim, alcohol groups... 

A soln. of 3 -cholestanoI and bis(tributyltin) oxide in tetrahydrofuran warmed 1 hr. at 50-60° in the presence of molecular sieve, then a soln. of bromine in tetrahydrofuran added dropwise at room temp, during 0.5 hr. 3-cholestanone. Y 89%. F. e. s. K. Saigo, A. Morikawa, and T. Mukaiyama, Bull. Chem. Soc. Japan 49, 1656 (1976) also preferential oxidation of sec. with retention of prim, alcohol groups s. Y. Ueno and M. Okawara, Tetrah. Let. 1976, 4597. 

Preferential acylation of sec alcohol groups with retention of prim alcohol groups... 

Prim, alcohols from aldehydes Preferential reduction of aldehyde groups with retention of keto-groups... 

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