Paul Brassard
Laval University
60 Papers
771 Citations
Paul Brassard is an academic researcher from Laval University. The author has contributed to research in topics: Ketene & Quinone. The author has an hindex of 17, co-authored 60 publications.
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Papers
Reactions of ketene acetals-14 The use of simple mixed vinylketene acetals in the annulation of quinones
Jacques Savard,Paul Brassard +1 more
TL;DR: In this paper, strong base and chlorotrimethylsilane were used to convert α, β- β, γ-unsaturated esters to the corresponding mixed vinylketene acetals.
146
Regiospecific syntheses of quinones using vinylketene acetals derived from unsaturated esters
Jacques Savard,Paul Brassard +1 more
TL;DR: In this article, a general method of annellating quinones in high yield has been devised using mixed vinylketene acetals obtained directly from the enolate ions of unsaturated esters.
111
Regiospecific addition of monooxygenated dienes to halo quinones
Louise Boisvert,Paul Brassard +1 more
TL;DR: Aromatisation and oxydation des adduits obtenus; application a la synthese d'anthraquinones naturelles telles que la barleriaquinone, l'isochrysophanol ou le saranjidiol as discussed by the authors.
63
Reactions of Keten Acetals. Part I. A Simple Synthesis of Some Naturally Occurring Anthraquinones
TL;DR: In this paper, a study of the condensation of keten acetals with some halonaphthoquinones has led to the simple and regiospecific synthesis of some naturally occurring anthraquinones: catenarin, helminthosporin, emodin, and chrysophanol.
42