ELECTROCHEMICAL CYCLODIMERIZATION OF ALKYLIDENEMALONATES

Citation
Mn. Elinson et al., ELECTROCHEMICAL CYCLODIMERIZATION OF ALKYLIDENEMALONATES, Tetrahedron, 51(17), 1995, pp. 5035-5046
Citations number
19
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404020
Volume
51
Issue
17
Year of publication
1995
Pages
5035 - 5046
Database
ISI
SICI code
0040-4020(1995)51:17<5035:ECOA>2.0.ZU;2-3
Abstract
Electrolysis of dimethyl alkylidenemalonates RCH=C(COOMe)(2) (R=n-Alk, Ph) in an undivided cell in MeOH in the presence of alkali metal hali de as mediator, leads to the formation of cyclic dimers, i.e., 3,4-dis ubstituted 1,1,2,2-cyclobutanetetracarboxylates. The reaction proceeds via the reductive coupling of two substrate molecules at cathode and the cyclization of a hydrodimer dianion by its interaction with an act ive form of a mediator, an anode-generated halogen.