A. Tsuruoka et al., PRACTICAL OXIRANE RING-OPENING WITH IN-SITU PREPARED LICN - SYNTHESISOF 2-METHYL-4-(1H-1,2,4-TRIAZOL-1-YL)-1-BUTANENITRILE, Synthetic communications, 27(20), 1997, pp. 3547-3557
Trisubstituted oxirane 1 was regiospecifically opened with LiCN in sit
u prepared from acetone cyanohydrin and LiH to provide the correspondi
ng beta-hydroxy nitrile 2 in satisfactory yield, enabling us to manufa
cture a key intermediate for a new antifungal agent on a multi-kg scal
e. Same applications of this method to the ring opening of other oxira
nes and nucleophilic substitution are also described.