Author/Authors :
Denis A. Lenev، نويسنده , , D.A. and Chervin، نويسنده , , I.I. and Lyssenko، نويسنده , , K.A. and Kostyanovsky، نويسنده , , R.G.، نويسنده ,
Abstract :
It was found by X-ray diffraction and NMR studies that the structure of the adduct of bis-ortho-methyl-bis-para-methyl substituted Trِger base and dimethyl acetylenedicarboxylate is a [3.3.1]bicyclic compound corresponding to the methyl 13-[1-(methoxycarbonyl)vinyl]-13-carboxylate. Chemical and NMR evidence supported similar structures for all other reported adducts of Trِger bases and activated acetylenes.
