Annulation of Thioimidates and Vinyl Carbodiimides to Prepare 2-Aminopyrimidines, Competent Nucleophiles for Intramolecular Alkyne Hydroamination. Synthesis of (−)-Crambidine
A convergent synthesis of (−)-crambidine is reported. The sequence capitalizes on two novel key transformations, including a [4+2] annulation of thioimidates with vinyl carbodiimides and an alkyne hydroamination employing 2-aminopyrimidine nucleophiles.
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Veröffentlicht in: | Journal of the American Chemical Society 2010-02, Vol.132 (6), p.1802-1803 |
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container_title | Journal of the American Chemical Society |
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creator | Perl, Nicholas R Ide, Nathan D Prajapati, Sudeep Perfect, Hahdi H Durón, Sergio G Gin, David Y |
description | A convergent synthesis of (−)-crambidine is reported. The sequence capitalizes on two novel key transformations, including a [4+2] annulation of thioimidates with vinyl carbodiimides and an alkyne hydroamination employing 2-aminopyrimidine nucleophiles. |
doi_str_mv | 10.1021/ja910831k |
format | Article |
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source | ACS Publications; MEDLINE |
subjects | Alkynes - chemistry Amination Carbodiimides - chemistry Guanidine - analogs & derivatives Guanidine - chemical synthesis Guanidine - chemistry Imidoesters - chemistry Pyrimidines - chemistry Spiro Compounds - chemical synthesis Spiro Compounds - chemistry Stereoisomerism |
title | Annulation of Thioimidates and Vinyl Carbodiimides to Prepare 2-Aminopyrimidines, Competent Nucleophiles for Intramolecular Alkyne Hydroamination. Synthesis of (−)-Crambidine |
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