铱配合物催化下炔基甲腙异构化反应的研究

铱配合物催化下炔基甲腙异构化反应的研究马春林（聊城师范学院化学系，聊城，２５２０５９）马永祥，陆熙炎（兰州大学化学系）（中国科学院上海有机化学研究所）关键词炔基甲腙，铱配合物，异构化反应，２Ｅ，４Ｅ－双烯基甲醛，１Ｚ，３Ｚ－双烯基偶氮化合物我们曾报道...

Isomerization of Alkynylformolhydrazone Catalyzed by Iridium Complex

The isomerization of alkynylformolhydrazone 1(a e) catalyzed by IrH5(i-Pr3P)2 complex was studied. The isomerization of substrate 1a,b gives 2E,4E-dienhydrazone 2(a,b);but under the same reactive condition,the substrate 1(c e) is isomerizated to 1Z ,3Z-dienazo-compound 3(c e).The 2(a,b) can be hydrosized to produce 2E,4E-dienaldehyde.So this is a high stereoselective synthetic approach of 2E,4E-dienaldehyde and 1Z ,3Z-dienazo-compound. All the compounds were characterized by means of elementary analysis,IR,1H NMR and MS spectra.