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1. (WO1991009040) METHOD FOR PREPARING STERICALLY HINDERED ARYL PHOSPHITES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009040 International Application No.: PCT/US1990/006619
Publication Date: 27.06.1991 International Filing Date: 13.11.1990
Chapter 2 Demand Filed: 21.06.1991
IPC:
C07F 9/145 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
F
ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9
Compounds containing elements of the 5th Group of the Periodic System
02
Phosphorus compounds
06
without P-C bonds
08
Esters of oxyacids of phosphorus
141
Esters of phosphorous acids
145
with hydroxyaryl compounds
Applicants:
UNIROYAL CHEMICAL COMPANY, INC. [US/US]; World Headquarters Middlebury, CT 06749, US
Inventors:
HUNTER, Byron, A.; US
Agent:
THOMPSON, Raymond, D. ; Uniroyal Chemical Company, Inc. World Headquarters Middlebury, CT 06749, US
Priority Data:
447,98808.12.1989US
Title (EN) METHOD FOR PREPARING STERICALLY HINDERED ARYL PHOSPHITES
(FR) PROCEDE DE PREPARATION DE PHOSPHITES D'ARYLE ENTRAVE STERIQUEMENT
Abstract:
(EN) A new process is disclosed for the manufacture of hindered aryl phosphites using derivatives of mercaptothiazole or dithiocarbamic acid as catalysts. Ortho-tertiary alkyl aryl phosphites are produced by the reaction of a phosphorus trihalide with an ortho-tertiary alkyl phenolic compound in the presence of the aforementioned catalysts.
(FR) Nouveau procédé de fabrication de phosphites d'aryle entravé à l'aide de dérivés de mercaptothiazole ou d'acide dithiocarbamique utilisés comme catalyseurs. On produit des phosphites d'aryle alkyle ortho-tertiaires par la réaction d'un trihalogénure phosphorique avec un composé phenolique d'alkyle ortho-tertiaire, en présence des catalyseurs précités.
Designated States: CA, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0504320CA2069619KR1019927003609