Generation of 1-aryl-3-methoxycarbonylnitrilimines and their reaction with halogen-containing unsaturated compounds
作者:Yu. V. Tomilov、D. N. Platonov、G. P. Okonnishnikova、R. A. Novikov、N. V. Volchkov
DOI:10.1007/s11172-012-0155-x
日期:2012.6
Thermal decomposition of 1-(4-methoxyphenyl)- and 1-(4-fluorophenyl)hepta(methoxycarbonyl)-3a,7a-dihydroindazoles at 135 °C in the presence of allyl or propargyl halides leads to the elimination of hexamethyl benzenehexacarboxylate and the formation of the corresponding pyrazolines or pyrazoles as the products of 1,3-dipolar cycloaddition of 1-aryl-3-methoxycarbonylnitrilimines to the multiple bonds
Catalytic Cyclopropanation of Fluorine-Containing Alkenes and Dienes with Diazomethane and Methyl Diazoacetate
作者:Ekaterina V. Guseva、Nikolay V. Volchkov、Yury V. Tomilov、Oleg M. Nefedov
DOI:10.1002/ejoc.200400109
日期:2004.7
bonds in fluorine-containing unsaturated compounds toward cyclopropanation with diazomethane and methyl diazoacetate with catalysis by copper, rhodium and palladium compounds were studied. In general, the presence of fluorine atoms attached to the double bond or arranged at neighbouring positions exerted a suppressive effect on the cyclopropanation of this bond. As would be expected, diazomethane in the