Contributions to syntheses of pyrrolo[2,1-a]phthalazines
作者:Mino R. Caira、Emilian Georgescu、Florentina Georgescu、Florin Albota、Florea Dumitrascu
DOI:10.1007/s00706-011-0468-8
日期:2011.7
Structural elucidation of the dihydro derivatives obtained as by-products in the classic salt method synthesis of pyrrolo[2,1-a]phthalazines and acetylenic dipolarophiles was achieved by X-ray diffraction analysis of a representative compound. In addition, new pyrrolo[2,1-a]phthalazines were obtained by a one-pot three-component reaction that avoids the formation of the dihydro derivative intermediates.