Enantioselective synthesis of 1,2,4-triazolines by chiral iron(ii)-complex catalyzed cyclization of α-isocyano esters and azodicarboxylates
作者:Min Wang、Xiaohua Liu、Peng He、Lili Lin、Xiaoming Feng
DOI:10.1039/c3cc39088h
日期:——
Enantioselective cyclization of α-isocyano esters with azodicarboxylates catalyzed by FeIIâN,Nâ²-dioxide complexes has been developed. Under mild conditions, a variety of 1,2,4-triazoline derivatives was obtained in high yields and enantioselectivities.
已开发出二价铁–N,N′-二氧化物配合物催化的α-异氰酸酯与偶氮二甲酸酯的对映选择性环化反应。在温和条件下,获得了多种1,2,4-三氮唑衍生物,产率和对映选择性均很高。