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Pyrrolodiazines. 4. Structure and chemistry of 3,4-dihydropyrrolo[1,2-a]pyrazine

✍ Scribed by JoséM. Minguez; Isabel Castellote; Juan J. Vaquero; JoséL. Garcia Navio; Julio Alvarez-Builla; Obis Castaño; JoséL. Andrés

Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
852 KB
Volume
53
Category
Article
ISSN
0040-4020

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✦ Synopsis

Abtra~ The structure of 3,4-dihydropyrrolo[ 1,2-a]pyrazine and its N-protonated form is studied by ab initio calculations. Examples of the re, activity of this poorly studied system are presented in which it is shown that the imino moiety does not react with dienes but does undergo inter-and intramolecular 1,3-dipolar cycloadditions by reaction of azomethine ylides of this bicyclic system with suitable dipolarophiles.

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Structure and Chemistry of 3,4-Dihydropyrrolo( 1,2-a)pyrazine. -The structure of title compound (I) and its N-protonated form is studied by ab initio calculations. The cyclic imino nitrogen can be quaternized to furnish azomethine ylide precursors which undergo inter-and intramolecular 1,3-dipolar

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