2-aryl-5,6-ring-fused pyrimidines and herbicidal use

Plant protecting and regulating compositions – Plant growth regulating compositions – Organic active compound containing

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504240, 544278, 544284, 544287, A01N 4354, C07D23970

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active

053786785

ABSTRACT:
A class of 2-aryl-5,6-ring-fused pyrimidines which is useful in the control of weeds is of the general formula: ##STR1## wherein Ar is an optionally substituted aromatic or heteroaromatic ring; R.sup.3 is an alkynyl or alkoxyalkyl group, -R.sup.5 - - R.sup.6 - is a fused ring moiety bonded to the pyrimidine ring at the 5 and 6 positions; and X is oxygen or sulfur.

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patent: 5300477 (1994-04-01), Tice
Kronberg, L. et al., "Studies on the medicinal chemistry of oxoquinazolines" Acta. Pharm. Sueica 7 1970, pp. 37-46.
Bogentoft, C. et al., "Studies on the medicinal chemistry of oxoquinalzolines" Acta. Pharm. Sueica 6 1969, pp. 489-500.

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