β′-chloro-β-hydroxy ketones in high yields. It was speculated that ringcleavage of the cyclobutanone ring with titanium(IV) chloride gave trichlorotitanium enolate having a tertiary alkyl chloride moiety and then aldol reaction of the titanium enolate proceeded. A trialkylsilylmethyl group at the 2-position of cyclobutanone facilitated the ringcleavage. Synthesis of substitutedcyclopentenone from an obtained
Synthesis of allylazo compounds by reactions of aryldiazonium salts with allylsilanes
作者:Herbert Mayr、Klaus Grimm
DOI:10.1021/jo00030a001
日期:1992.2
Aryldiazonium tetrafluoroborates react with allylsilanes to yield allylazo compounds. If the allylic carbon attached to the azo group carries hydrogen, tautomerization with formation of hydrazones takes place.
HSIAO, C. -N.;SHECHTER, H., TETRAHEDRON LETT., 1982, 23, N 19, 1963-1966
作者:HSIAO, C. -N.、SHECHTER, H.
DOI:——
日期:——
HSIAO, C. -H.;SHECHTER, H., J. ORG. CHEM., 53,(1988) N 12, 2688-2699