DINCULESCU, ANTONIE;BALABAN, TEODOR-SILVIU;BALABAN, ALEXANDRU T., TETRAHEDRON LETT., 28,(1987) N 27, 3145-3146
作者:DINCULESCU, ANTONIE、BALABAN, TEODOR-SILVIU、BALABAN, ALEXANDRU T.
DOI:——
日期:——
Synthesis of indolizines starting from pyrylium salts
作者:Antonie Dinculescu、Teodor-Silviu Balaban、Alexandru T Balaban
DOI:10.1016/s0040-4039(00)96307-x
日期:1987.1
β-N-Pyridinium acetaldehydes with alkyl substituents in the 2 and 6 positions of the pyridinium ring, obtained from the corresponding pyryliumsalts, cyclise in alkaline medium to new indolizines. This high-yield reaction sequence is optimal for indolizines unsubstituted in the five-membered ring which are difficultly accessible by other methods.