Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1994-08-23
1996-08-27
Lipman, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549 80, 558434, 560124, C07D20982
Patent
active
055502580
ABSTRACT:
The present invention provides an ester compound represented by a formula I: ##STR1## wherein R.sub.1 denotes a hydrogen atom or a methyl group; R.sub.2 represents a 1-methyl-2-propenyl group, a 1-methyl-2-propynyl group, a 3,3-dihalogeno-1-methyl-2-propenyl group, or a C.sub.1 -C.sub.1 6 alkyl group which may be substituted with at least one halogen atom; and R.sub.3 represents an acid residue of pyrethroids.
The invention also relates to an active agent for controlling noxious insect pests containing the ester compound as an active ingredient, an intermediate for production of the ester compound and a process for producing the intermediate. The ester compound represented by the formula I has good activities for controlling noxious insect pests.
REFERENCES:
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Takai et al., `Effective Methods of Carbonyl Methylenation Using CH.sub.2 I.sub.2 -Zn-Me.sub.3 Al and CH.sub.2 BR.sub.2 -Zn-TiCl.sub.4 System`, Tetrahedron Letters, No. 27, pp. 2417-2420, 1978.
Furukawa Takashi
Ishiwatari Takao
Iwasaki Tomonori
Suzuki Masaya
Tsuchiya Toru
Lipman Bernard
Sumitomo Chemical Company Limited
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