Halogen Is Cl Only Patents (Class 585/620)
  • Patent number: 5714649
    Abstract: Disclosed are compounds suitable for use as raw materials which enable cis-olefin compounds useful as physiologically active substances such as the sex pheromones of various insects, or as intermediates for the synthesis thereof to be prepared on an industrial scale at a reasonable cost, and processes for the preparation of cis-olefin compounds by using the same. For this purpose, novel compounds (i.e., 1-halo-cis-3-tetradecenes) of the general formula (I)CH.sub.3 (CH.sub.2).sub.9 CH.dbd.CH(CH.sub.2).sub.2 X (I)wherein X is a halogen atom, are used as raw materials for the preparation of cis-olefin compounds.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: February 3, 1998
    Assignee: Shin-Etsu Chemical CO., Ltd.
    Inventors: Takehiko Fukumoto, Daisuke Iwai, Shigeo Okano, Hiroshi Suzuki, Mitsuyoshi Oshima
  • Patent number: 5011990
    Abstract: Compounds having the formula ##STR1## wherein R is an aromatic or aliphatic group; R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, C.sub.1-4 alkyl or phenyl; X is halogen; and Y is halogen or an aromatic group; are prepared in a regioselective manner by treating a compound having the formula ##STR2## with a catalytic amount of a palladium(O) or a palladium(II) transition metal catalyst.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: April 30, 1991
    Inventor: Raymond A. Felix