A comparative synthesis of 6-benzyl-2,3-dihydroimidazo[2,1-a]phthalazine and 2H-7-benzyl-3,4-dihydropyrimido[2,1-a]phthalazine
作者:Javier Munín、Lourdes Santana、Eugenio Uriarte、Fernanda Borges、Elías Quezada
DOI:10.1016/j.tetlet.2014.12.121
日期:2015.2
Two new synthetic strategies have been developed for the synthesis of a new class of cyclophthalazine derivatives. 6-Benzyl-2,3-dihydroimidazo[2,1-a]phthalazine and 2H-7-benzyl-3,4-dihydropyrimido[2,1-a]phthalazine were obtained (i) by intramolecular cyclization of the 2-(aminoalkyl)-4-benzyl-2H-phthalazin-1-one or (ii) by intramolecular cyclization of the corresponding 2-(4-benzylphthalazin-1(2H)-y
已经开发出两种新的合成策略来合成新型的环酞嗪衍生物。(i)通过2-的分子内环化获得6-苄基-2,3-二氢咪唑并[ 2,1 - a ]酞嗪和2 H -7-苄基-3,4-二氢嘧啶基[ 2,1 - a ]酞嗪。 (氨基烷基)-4-苄基-2 H-酞嗪-1-酮或(ii)通过分子内环化先前制备的相应的2-(4-苄基酞嗪-1(2 H)-亚烷基氨基)醇。所描述的第二种路线以高收率提供了所需的衍生物。