Tetrahydro-2(1H)-quinazolinones and cyclohexene nitriles

Details Tetrahydro-2(1H)-quinazolinones and cyclohexene nitriles Tetrahydro-2(1H)-quinazolinones and cyclohexene nitriles

1981-11-05

1983-07-26

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

260464, 260465D, 544285, 544286, 544287, C07D23982, C07D23996, C07C125065

Patent

active

043955509

ABSTRACT:
A process for the production of 4-phenyl-2(1H)-quinazolinones and -4a,5,6,8a-tetrahydro-2(1H)-quinazolinones which comprises introducing the desired phenyl radical into a corresponding quinazolin-2,4(1H,3H)-dione by way of a Grignard reaction and hydrolysis of the resulting product.

REFERENCES:
patent: 2217632 (1940-10-01), Wolfe
patent: 3723432 (1973-03-01), Ott
patent: 3937705 (1976-02-01), Hardtmann
patent: 3996227 (1976-12-01), Salmond
patent: 4065496 (1977-12-01), Oppolzer
patent: 4171441 (1979-10-01), Smith
Mekhtiev et al., J. Org. Chem. U.S.S.R., vol. 5, pp. 1364-1366 (1969).
Kricheldorf, Liebig's Ann. Chem., 1975, pp. 1387-1393 (1975).
Garcia et al., Chemical Abstracts, vol. 78, 124,553n (1973).
Engelhardt et al., Chemical Abstracts, vol. 89, 197196k (1978).

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