Title:
PROCESS FOR PREPARATION OF 2−PHENYLACETOPHENONE DERIVATIVES AND PRECURSORS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2003/014051
Kind Code:
A1
Abstract:
A process for the preparation of 2−phenylacetophenone derivatives represented by the general formula (I): (I) (wherein X is alkyl or haloalkyl&semi and Y is hydrogen, halogeno, or optionally substituted alkyl), which comprises reacting a compound represented by the general formula (II) with an acid: (II) (wherein X and Y are each as defined above&semi and R is hydrogen or alkyl).
Inventors:
OHSHIMA TAKESHI (JP)
NISHIMURA SHIGEYUKI (JP)
ANDO TAKAYOSHI (JP)
NISHIMURA SHIGEYUKI (JP)
ANDO TAKAYOSHI (JP)
Application Number:
PCT/JP2002/007176
Publication Date:
February 20, 2003
Filing Date:
July 15, 2002
Export Citation:
Assignee:
ISHIHARA SANGYO KAISHA (JP)
OHSHIMA TAKESHI (JP)
NISHIMURA SHIGEYUKI (JP)
ANDO TAKAYOSHI (JP)
OHSHIMA TAKESHI (JP)
NISHIMURA SHIGEYUKI (JP)
ANDO TAKAYOSHI (JP)
International Classes:
C07C45/42; C07C45/51; C07C49/813; (IPC1-7): C07C45/42; C07C49/813
Foreign References:
| US5011998A | 1991-04-30 | |||
| JPS6468758A | 1989-03-14 |
Other References:
BABUDRI FRANCESCO ET AL.: "The reaction of arylaldehydes with hexamethylphosphorous thiamide and the use of the resulting products for the synthesis of anemines and deoxybenzoins", SYNTHESIS, vol. 3, 1991, pages 225 - 228, XP002958944
PAVENTI MARTINO ET AL.: "Facile preparation of deoxybenzoins via a novel synthesis of enamines", TETRAHEDRON LETTERS, vol. 32, no. 13, 1991, pages 1617 - 1620, XP002958945
OLIVERA ROBERTO ET AL.: "A convenient strategy for the synthesis of 4,5-bis(o-haloaryl)isoxazoles", JOURNAL OF ORGANIC CHEMISTRY, vol. 65, no. 20, 2000, pages 6398 - 6411, XP002958946
PAVENTI MARTINO ET AL.: "Facile preparation of deoxybenzoins via a novel synthesis of enamines", TETRAHEDRON LETTERS, vol. 32, no. 13, 1991, pages 1617 - 1620, XP002958945
OLIVERA ROBERTO ET AL.: "A convenient strategy for the synthesis of 4,5-bis(o-haloaryl)isoxazoles", JOURNAL OF ORGANIC CHEMISTRY, vol. 65, no. 20, 2000, pages 6398 - 6411, XP002958946
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo, JP)
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