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Process for the preparation of hydroxyphenylcarboxylates

Patent
US-5481023-A
Inventor

KLEINER CHRISTOPH (CH)

EVANS SAMUEL (CH)

SCHMITT RALF (DE)

Assignee
CIBA GEIGY CORP (US)
Country
United States
Dates
  • Priority:
    1991/10/15
  • Grant:
    1996/01/02
Description
This web page summarizes information in PubChem about patent US-5481023-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

1 Abstract

There is disclosed a process for the preparation of compounds of formula I ##STR1## wherein R 1 and R 2 are each independently of the other C 1 --C 8 alkyl, m is 0, 1, 2 or 3, n is 1 or 2, and A, if n 32 1, is OR 3 , and R 3 is C 4 -C 20 alkyl or C 5 -C 12 cycloalkyl, or A, if n=2, has the formula --O--C x H 2x --O-- or --O--(CH 2 CH 2 O) a CH 2 CH 2 O--, x is a number from 2 to 8 and a is a number from 1 to 12, by reacting a compound of formula II ##STR2## with a compound of formula III ##STR3## the reaction being carded out in the presence of an aluminium trialcoholate or triphenolate as catalyst.

2 Full Text

3 Important Dates

3.1 Priority Date

1991/10/15

3.2 Filing Date

1993/09/30

3.3 Publication Date

1996/01/02

3.4 Grant Date

1996/01/02

4 Inventor

KLEINER CHRISTOPH (CH)

EVANS SAMUEL (CH)

SCHMITT RALF (DE)

5 Assignee

CIBA GEIGY CORP (US)

6 Country

United States

7 Linked Chemicals

7.1 PubChem Compounds

7.2 PubChem Substances

8 Patent Family

9 Classification

9.1 IPC

C07C69/88 (inventive)

C07C67/02 (inventive, first)

C07C69/612 (inventive)

C07B61/00 (inventive)

C07C69/732 (inventive)

C07C69/84 (inventive)

C07C67/03 (inventive)

9.2 CPC

C07C67/03 (inventive, first)

C07C39/08 (inventive, first)

10 Citations

11 Cited By

12 Similar Patents

13 Information Sources

  1. Google Patents
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  2. PubChem
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