Synthesis 2013; 45(4): 491-500
DOI: 10.1055/s-0032-1318001
paper
© Georg Thieme Verlag Stuttgart · New York

Efficient Access to 2,7-Diarylated Pyrido[3,2-d]pyrimidines Involving Regioselective­ Pallado-dehalogenation and Suzuki Cross-Coupling Reactions

Abdellatif Tikad
a   ICOA, Université d’Orléans, UMR CNRS 7311, 45067 Orléans, France   Fax: +33(23)8417281   Email: sylvain.routier@univ-orleans.fr
b   LCBA, Université Hassan II-Mohammedia, BP 146, 20650 Mohammedia, Morocco
,
Oussama Dehbi
a   ICOA, Université d’Orléans, UMR CNRS 7311, 45067 Orléans, France   Fax: +33(23)8417281   Email: sylvain.routier@univ-orleans.fr
b   LCBA, Université Hassan II-Mohammedia, BP 146, 20650 Mohammedia, Morocco
,
Mohamed Akssira
b   LCBA, Université Hassan II-Mohammedia, BP 146, 20650 Mohammedia, Morocco
,
Mina Aadil
b   LCBA, Université Hassan II-Mohammedia, BP 146, 20650 Mohammedia, Morocco
,
Stéphane Massip
c   EA 2962, Pharmacochimie, Université Victor Segalen Bordeaux II, 146 rue Leo Saignat, 33056 Bordeaux Cedex, France
,
Jean-Michel Leger
c   EA 2962, Pharmacochimie, Université Victor Segalen Bordeaux II, 146 rue Leo Saignat, 33056 Bordeaux Cedex, France
,
Christian Jarry
c   EA 2962, Pharmacochimie, Université Victor Segalen Bordeaux II, 146 rue Leo Saignat, 33056 Bordeaux Cedex, France
,
Gérald Guillaumet*
a   ICOA, Université d’Orléans, UMR CNRS 7311, 45067 Orléans, France   Fax: +33(23)8417281   Email: sylvain.routier@univ-orleans.fr
,
Sylvain Routier*
a   ICOA, Université d’Orléans, UMR CNRS 7311, 45067 Orléans, France   Fax: +33(23)8417281   Email: sylvain.routier@univ-orleans.fr
› Author Affiliations
Further Information

Publication History

Received: 15 November 2012

Accepted after revision: 15 December 2012

Publication Date:
14 January 2013 (online)


Abstract

An efficient and original synthesis of various 2,7-disubstituted pyrido[3,2-d]pyrimidines is reported. The first synthesis of 2,7-dichloropyrido[3,2-d]pyrimidine, by selective palladium-catalyzed dechlorination of 2,4,7-trichloropyrido[3,2-d]pyrimidine at C-4, is described and its chemical reactivity is examined. Diarylated pyrido[3,2-d]pyrimidines were synthesized starting from 2,7-dichloropyrido[3,2-d]pyrimidine by regioselective Suzuki cross-­coupling reaction at C-2 and then at C-7.

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