Plant growth promoter and method of plant growth promotion
申请人:TEIJIN LIMITED
公开号:EP0194679A2
公开(公告)日:1986-09-17
A plant growth promoter comprising as an active ingredient for plant growth promotion at least one pheny-Iglycine selected from the group consisting of
(1) monomeric phenylglycines,
(2) N-phenylglycylphenylglycines, and
(3) cyclic dimers of phenylglycines.
The invention refers to a novel method for the preparation of 8-hydroxyoctanoic acid by reaction of 6-chlorohexanol with a dialkyl malonate ester, thermal decarboxylation of the malonic acid derivative and isolation of the 8-hydroxyoctanoic acid as the free acid or as an alkali metal salt.