Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1990-12-21
1992-07-14
Shah, Mukund J.
Chemistry: fertilizers
Processes and products
Forms or conditioning
544300, 546268, A01N 4354, C07D40112
Patent
active
051299372
ABSTRACT:
Herbicidally active pyridyloxypyrimidines represented by the following formula [I]: ##STR1## wherein R means a formyl group or an acetal group represented by ##STR2## R.sup.1 and R.sup.2 being the same or different and individually denoting an alkyl group having 1-4 carbon atoms or R.sup.1 and R.sup.2 being coupled together and denoting an alkylene group, R.sup.3, having 2-3 carbon atoms; are prepared by reacting 2 formyl-3-hydroxypyridine or 3-hydroxy-2-pyridine carboxaldehyde acetal with 2 halogeno-4,6 dimethoxypyrimidine in the presence of a base.
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Gohbara Masatoshi
Ishii Tsutomu
Ishikawa Katsutoshi
Iwasaki Yasunaga
Nishida Makoto
Bernhardt E.
Mitsui Toatsu Chemicals Incorporated
Shah Mukund J.
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