Synthesis of enantiomerically pure ethylenediamines from chiral sulfinimines: a new twist to the Strecker reaction
摘要:
Addition of various cyanide nucleophiles on chiral t-butylsulfinimine and p-tolylsulfinimine derivatives are described and demonstrated that aliphatic t-butylsulfinimines are excellent substrates for a new variant of the Strecker reaction where cyanide ions are delivered through ethylisopropoxyaluminum cyanide or trimethylsilylcyanide combined with a Lewis acid catalyst. The reaction proceeds with high yield and high diastereoselectivity, which can be further improved by additional crystallizations. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis of enantiomerically pure ethylenediamines from chiral sulfinimines: a new twist to the Strecker reaction
摘要:
Addition of various cyanide nucleophiles on chiral t-butylsulfinimine and p-tolylsulfinimine derivatives are described and demonstrated that aliphatic t-butylsulfinimines are excellent substrates for a new variant of the Strecker reaction where cyanide ions are delivered through ethylisopropoxyaluminum cyanide or trimethylsilylcyanide combined with a Lewis acid catalyst. The reaction proceeds with high yield and high diastereoselectivity, which can be further improved by additional crystallizations. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis of enantiomerically pure ethylenediamines from chiral sulfinimines: a new twist to the Strecker reaction
作者:Stéphane Mabic、Alex A. Cordi
DOI:10.1016/s0040-4020(01)00886-9
日期:2001.10
Addition of various cyanide nucleophiles on chiral t-butylsulfinimine and p-tolylsulfinimine derivatives are described and demonstrated that aliphatic t-butylsulfinimines are excellent substrates for a new variant of the Strecker reaction where cyanide ions are delivered through ethylisopropoxyaluminum cyanide or trimethylsilylcyanide combined with a Lewis acid catalyst. The reaction proceeds with high yield and high diastereoselectivity, which can be further improved by additional crystallizations. (C) 2001 Elsevier Science Ltd. All rights reserved.