Use of substituted-3-phenacylidenephthalides as corn plant growth
申请人:Monsanto Company
公开号:US04255181A1
公开(公告)日:1981-03-10
This disclousure relates to regulating the growth of corn plants utilizing substituted-3-phenacylidene-phthalides. More particularly the present disclosure is concerned with a method of treating a corn plant with a substituted-3-phenacylidenephthalide or composition containing such a compound in order to effectively alter the development of the reproductive components of the corn plant.
Howe, Robert K., Journal of Heterocyclic Chemistry, 1985, vol. 22, p. 71 - 72
作者:Howe, Robert K.
DOI:——
日期:——
Process for preparing 3-phenacylidene phthalides
申请人:Kao Corporation
公开号:US04698435A1
公开(公告)日:1987-10-06
A novel process for preparing a 3-phenacylidene phthalide of the general formula (II) ##STR1## which comprises reacting a halogenating reagent with a 2-carboxydibenzoylmethane. The 2-carboxydibenzoylmethane can be inexpensively prepared, so that the 3-phenacylidene phthalides which are useful as a growth regulant for plants and a safering agent to reduce herbicidal injury to plants can be readily obtained economically in high yield.