Title:
DIALKYL 4-METHYLPHOSPHINOBUTYRATES AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/1979/001114
Kind Code:
A1
Abstract:
Dialkyl 4-methylphosphinobutyrates represented by the following general formula; (FORMULA) (wherein R1 represents hydrogen atom or acylamino group, and R2 and R5 each represents C1-C5 alkyl group) are intermediates for D,L-2-amino-4-methylphosphinobutyric acid useful as a herbicide, and are prepared by reacting a corresponding vinylacetic acid ester with methylphosphorous acid monoalkyl ester at 100-200 C in the presence of a radical-generating agent or under irradiation with ultraviolet rays.
Inventors:
TACHIBANA K (JP)
MIZUTANI K (JP)
SUZUKI A (JP)
INOUYE S (JP)
TAKEMATSU T (JP)
SEKIZAWA Y (JP)
TSURUOKA T (JP)
MIZUTANI K (JP)
SUZUKI A (JP)
INOUYE S (JP)
TAKEMATSU T (JP)
SEKIZAWA Y (JP)
TSURUOKA T (JP)
Application Number:
PCT/JP1979/000091
Publication Date:
December 13, 1979
Filing Date:
April 10, 1979
Export Citation:
Assignee:
MEIJI SEIKA KAISHA (JP)
TACHIBANA K (JP)
MIZUTANI K (JP)
SUZUKI A (JP)
INOUYE S (JP)
TAKEMATSU T (JP)
SEKIZAWA Y (JP)
TSURUOKA T (JP)
TACHIBANA K (JP)
MIZUTANI K (JP)
SUZUKI A (JP)
INOUYE S (JP)
TAKEMATSU T (JP)
SEKIZAWA Y (JP)
TSURUOKA T (JP)
International Classes:
C07F9/32; C07F9/553; (IPC1-7): C07F9/32
Foreign References:
| JPS52139727A | 1977-11-21 | |||
| JPS5273825A | 1977-06-21 | |||
| JPS4913123A | 1974-02-05 | |||
| JPS4891019A | 1973-11-27 |
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