BARTNIK, R.;MLOSTON, G., TETRAHEDRON, 1984, 40, N 13, 2569-2576
作者:BARTNIK, R.、MLOSTON, G.
DOI:——
日期:——
Aziridines-IV Catalytic decomposition of phenyldiazomethane in Schiff's bases
作者:R. Bartnik、G. Mlostoń
DOI:10.1016/s0040-4020(01)83511-0
日期:1984.1
Catalytic decomposition of phenyldiazomethane in Schiff's bases is found to proceed via formation of trans-1,3-dipole (azomethine ylide) as an intermediate product. Depending on the size and quantity of the substituents, the ylide undergoes either cyclization in controtatory sense to cis-aziridine or cycloaddition[2+3]to the C=N bond of imine. The reactivity of double bonds to ylide decreases in the order
发现席夫碱中苯基重氮甲烷的催化分解是通过形成反式-1,3-偶极子(偶氮次甲基叶立德)作为中间产物而进行的。取决于取代基的大小和数量,该叶立德在有争议的意义上经历环化成顺式-氮丙啶或环化[2 + 3]亚胺的C = N键。双键对内酯的反应性以C = C> C = O> C = N的顺序降低。