Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1977-04-11
1978-09-26
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
71122, C07C 3310
Patent
active
041172477
ABSTRACT:
A 1,1,1-trihalogeno-4-methyl-3-penten-2-ol is prepared by thermally isomerizing 1,1,1-trihalogeno-4-methyl-4-penten-2-ol. The isomerization reaction may be catalyzed by an acid or a transition metal of Group 6B, 7B or 8 of the Periodic Table of Elements, or a compound thereof. The 1,1,1-trihalogeno-4-methyl-3-penten-2-ol thus prepared is useful as a synergist for herbicides or a physiologically active compound, and, additionally, is useful as a starting material for the synthesis of 2,2-dimethyl-3-(2',2'-dihalogenovinyl)-cyclopropane carboxylic esters which are active ingredients of insecticides.
REFERENCES:
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Ipatieff et al., J.A.C.S., 56 2696-2698 (1934).
March, Advanced Org. Chem., Reaction Mechanism & Structure, McGraw-Hill Book Co., New York (1968), pp. 452-454.
Klimova et al., J. Org. Chem., USSR (1969), pp. 1308-1311.
Colonge et al., Soc. Chem. de France Bull (1957), 204-208.
Colonge et al., C.R. 1954, 541-543.
Bishop et al., J. Chem. Soc., 1966, 670-673.
Yanovskaya et al., Russian Chemical Reviews, 39 (10) 1970, pp. 859-870.
Itoi Kazuo
Mori Fumio
Nishida Takashi
Omura Yoshiaki
Kuraray Co. Ltd.
Mars Howard T.
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