Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1988-11-22
1990-08-07
Rotman, Alan L.
Chemistry: fertilizers
Processes and products
Forms or conditioning
546291, 546298, 546300, C07D21184, C07D21186, C07D21190, A01N 4340
Patent
active
049464973
ABSTRACT:
A compound of the formula (I) ##STR1## or a salt thereof, wherein R is hydrogen atom, or a group of --(CH.sub.2).sub.n --R.sub.1 wherein n is an integer from 1 to 3 and R.sub.1 is hydrogen atom, hydroxy group, a lower alkoxy group, mercapto group, a lower alkylthio group, amino group, a di-lower alkylamino group, a C.sub.3-11 alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, a 5- or 6-membered heterocyclic group, or a phenyl group which may be substituted by one or two substituents of a halogen, a lower alkyl or a lower alkoxy;
REFERENCES:
Zankowska 23(11), 901 (1975).
Zankowska 21, 141 (1976).
Yakugakuzassi (Yakugaku Zasshi), "Studies on Ketene and Its Derivatives", Kato et al., pp. 40-46 (1981).
Journal of Medicinal Chemistry, "Preparation and Anti-Inflammatory Activity of 2-and 4-Pyridones", Pierce et al., vol. 25, pp. 131-136 (1982).
Chemical Abstracts, vol. 88, 22565g, (1978).
Chemical Abstracts, vol. 85, 21037n (1976).
Goto Yukihisa
Masamoto Kazuhisa
Morishima Yasuo
Osabe Hirokazu
Yagihara Hiroshi
Daicel Chemical Industries Ltd.
Rotman Alan L.
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