Unprecedented reactivity of 3-amino-1H,3H-quinoline-2,4-diones with urea: An efficient synthesis of 2,6-dihydro-imidazo[1,5-c]quinazoline-3,5-diones

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F03%3A63501409" target="_blank" >RIV/70883521:28110/03:63501409 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Unprecedented reactivity of 3-amino-1H,3H-quinoline-2,4-diones with urea: An efficient synthesis of 2,6-dihydro-imidazo[1,5-c]quinazoline-3,5-diones

Original language description

Substituted 3-amino-1H,3H-quinoline-2,4-diones react with urea in acetic acid to give novel 2,6-dihydro-imidazol[1,5-c]-quinazoline-3,5-diones in high yields. The same compounds were obtained, albeit with small yields, from 3-chloro-1H,3H-quinoline-2,4-diones and urea. In the proposed reaction mechanism, a molecular rearrangement of the primarily formed mono-substituted urea takes splace. The prepared 2,6-dihydro-imidazo[1,5-c]quinazoline-3,5-diones were characterized by their 1H, 13C, 15N NMR and IR spectra and atmospheric pressure chemical ionisation mass spectra.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

TETRAHEDRON

ISSN

0040-4020

e-ISSN

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Volume of the periodical

Neuveden

Issue of the periodical within the volume

59

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

1283-1288

UT code for WoS article

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EID of the result in the Scopus database

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