✦ LIBER ✦

Alkylation of N-(1-Anthaquinonyl)ureas and their cyclization to anthra[1,2-d]imidazolinones

✍ Scribed by V. A. Savel'ev; V. A. Loskutov

Book ID: 104781143
Publisher: Springer US
Year: 1989
Tongue: English
Weight: 451 KB
Volume: 25
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00470022

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✦ Synopsis

ALKYLATION OF N-(I-ANTHAQUINONYL)UREAS AND THEIR CYCLIZATION TO ANTHRA[I,2-d]IMIDAZOLINONES V. A. Savel'ev and V. A. Loskutov UDC 547.673.5'495.2'783 N1-(l-Anthraquinonyl)-N2-arylureas in DMSO in the presence of bases form N-anions which cyclize to anthra[l,2-d]imidazolinones, and in the presence of alkyl halides give the N2-alkyl derivatives. Anions of N1-(l-anthraquinonyl)-N2-alkylureas are less stable, and are rapidly converted into l-aminoanthraquinone.

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