Spontaneous aromatization of Diels–Alder adducts in the reaction of alkatrienylphosphonates with dialkyl esters of acetylenedicarboxylic acid
作者:Christo M. Angelov、Diana M. Mondeshka、Tschonka N. Tancheva
DOI:10.1039/c39850000647
日期:——
The reaction of dialkyl (3-methylpenta-1,2,4-trienyl)phosphonates with dialkyl esters of acetylenedicarboxylicacid proceeds via a novel spontaneous aromatization of the Diels–Alder adducts leading to benzylphosphonic acid derivatives.
Dialkyl esters of 3-methyl-1,2,4-pentatrienephosphonic acid react with alkylsulfenyl chlorides to produce dialkyl esters of 2-thienylphosphonic acid.
3-甲基-1,2,4-戊三烯膦酸的二烷基酯与烷基亚磺酰氯反应生成2-噻吩基膦酸的二烷基酯。
1,2-Alkatrienephosphonates in the Reactions with Sulfenyl- and Selenenylbromides
作者:Dobromir D. Enchev、Stanimir P. Stankolov
DOI:10.1080/10426500701340857
日期:2007.6.14
The interaction of 1,2-alkatrienephosphonic dichlorides and dialkyl esters with sulfenyl- and selenenylbromides is investigated and a possible mechanism of the reactions is discussed. The possibility to control the structure of the products by variation of the type of the electrophile and of the substrate is also shown.