Tetrahedron letters

Hindered organoboron groups in organic synthesis 16. preparation and use of lithium ditripylethylhydroborate for the diastereoselective reduction of cyclohexanones

K Smith, A Pelter, A Norbury

Index: Smith, Keith; Pelter, Andrew; Norbury, Andrew Tetrahedron Letters, 1991 , vol. 32, # 43 p. 6243 - 6246

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Citation Number: 13

Abstract

Abstract Preparations of lithium and potassium ditripylethylhydroborates are outlined. The lithium salt reduces substituted cyclohexanones with diastereoselectivities comparable with the most selective reagents known, but with the advantages that low temperatures are not required and the corresponding borane is air stable and can be quantitatively recovered.