Diversity-Oriented Synthesis of Hydrazine-Derived Compounds from Amino Isocyanates Generated In Situ
作者:Christian Clavette、Jean-François Vincent Rocan、André M. Beauchemin
DOI:10.1002/anie.201306379
日期:2013.11.25
Behind the mask: Nitrogen‐substituted isocyanates are rare and their synthetic potential is virtually untapped. Simple masked precursors can form amphoteric amino isocyanate intermediates in situ, and allows the synthesis of complex hydrazine derivatives upon addition with amines. This reactivity was used in a cascade substitution/hydroamination sequence, and in the assembly of azadipeptide analogues
面罩背后:氮取代的异氰酸酯很少见,其合成潜能实际上尚未开发。简单的掩蔽前体可以原位形成两性氨基异氰酸酯中间体,并允许在添加胺后合成复杂的肼衍生物。该反应性用于级联取代/氢化胺化序列以及氮杂二肽类似物的组装中。