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Patent Searching and Data


Title:
PRODUCTION OF 1,1'-BINAPHTHYLS
Document Type and Number:
Japanese Patent JPS63264540
Kind Code:
A
Abstract:

PURPOSE: To produce the titled compound useful as a raw material for asymmetric polymer, additive for polymer production, etc., in high yield, by reacting naphthalenes in the presence of a peroxide and an acid and, if necessary, acylating the reaction product.

CONSTITUTION: 1,1'-Binaphthols of formula II (e.g. 2,2',6,6'-tetraphydroxy-1,1'- binaphthyl) can be produced by reacting naphthalenes of formula I (R1 is H or alkyl; R2 is H, hydroxy, alkyl, alkoxy or halogen) (e.g. 2,6-dihydroxynaph thalene) in the presence of a peroxide (e.g. hydrogen peroxide) and an acid (e.g. sulfuric acid) and, if necessary, reacting the product with an acylation agent (e.g. formic acid and acetic acid). The process can be performed without brominating a naphthalene compound as a raw material, using decreased amount of catalyst and preventing coloring of the product.


Inventors:
ISHIGURO MASAHARU
MIKI HISAYA
HIROKANE SHINYA
NITAHARA MASATOSHI
TAGUCHI TORU
Application Number:
JP9823987A
Publication Date:
November 01, 1988
Filing Date:
April 21, 1987
Export Citation:
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Assignee:
MITSUI PETROCHEMICAL IND
International Classes:
C07C43/20; C07B61/00; C07C27/00; C07C37/11; C07C39/14; C07C39/38; C07C41/00; C07C41/30; C07C43/225; C07C43/23; C07C67/00; C07C69/035; (IPC1-7): C07C37/11; C07C39/14; C07C39/38; C07C41/30; C07C43/20; C07C43/225; C07C43/23; C07C69/035
Attorney, Agent or Firm:
Shunichiro Suzuki