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US5235109A Process for the preparation of ketone compounds 失效
酮类化合物的制备方法

Process for the preparation of ketone compounds
摘要:
The invention relates to an improved, large scale process for the preparation of compounds of formula (I) ##STR1## wherein R is halogen atom or hydroxyl,R.sup.2 is hydrogen atom or hydroxyl,R.sup.3 and R.sup.4 are hydrogen or alkoxy having 1-6 carbon atoms.
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