A New Reactivity Mode for the Diazo Group: Diastereoselective 1,3-Aminoalkylation Reaction of β-Amino-α-Diazoesters To Give Triazolines
作者:Alexey Kuznetsov、Anton V. Gulevich、Donald J. Wink、Vladimir Gevorgyan
DOI:10.1002/anie.201404352
日期:2014.8.18
3‐addition of a nucleophile and an electrophile to the diazo group, has been realized in the intramolecular aminoalkylation of β‐amino‐α‐diazoesters to form tetrasubstituted 1,2,3‐triazolines. The reaction exhibited a broad scope, good functional group tolerance, and excellent diastereoselectivity. In addition, a new Au‐catalyzed intramolecular transannulation reaction of the obtained propargyl triazolines
在 β-氨基-α-重氮酯的分子内氨烷基化形成四取代的 1,2,3 中实现了重氮基团的一种新反应模式,即亲核试剂和亲电试剂与重氮基团的 1,3-加成-三唑啉。该反应表现出广泛的范围、良好的官能团耐受性和优异的非对映选择性。此外,还发现了一种新的金催化的炔丙基三唑啉分子内环化反应生成吡咯。