Synthesis via silyl alkenyl ethers. 14. Dimethyldicyanosilane: a reagent for concurrent silylation and cyanosilylation of. beta.-diketones

I Ryu, S Murai, A Shinonaga, T Horiike…

Index: Ryu,I. et al. Journal of Organic Chemistry, 1978 , vol. 43, p. 780 - 782

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Citation Number: 15

Abstract

4 The reaction takes place exothermically with the evolution of hydrogen cyanide at room temperature to give 4. In a rep- resentative procedure dimethyldicyanosilane (12 mmol) is dissolved in dichloromethane (3 mL) and the solution is cooled to -40 “C. The @-diketone (10 mmol) is slowly added to the solution by a hypodermic syringe, and the mixture is allowed to warm to room temperature over 1 h. After removal of hy- drogen cyanide and the solvent, purification is effected by ...