METHOD OF PREPARING VAT DYES AND PIGMENTS CONTAINING PERYLENE FRAGMENT Russian patent published in 1999 - IPC

Abstract RU 2128200 C1

FIELD: chemical industry. SUBSTANCE: method comprises treating original compound of formula I: or II: in the presence of zinc dust and catalyst in aprotic dipolar solvent at 70-220 C and subsequently oxidizing reaction mixture. Catalyst is nickel (II) fluoride, chloride, bromide, iodide or sulfate, and promoter is alkali or alkaline-earth metal halide, or ammonium salt. EFFECT: increased yield of thee desired products. 72, 7 tbl

Similar patents RU2128200C1

Title	Year	Author	Number
PROCESS FOR PRODUCING 5,5′-BIACENAPHTHENYL	1993	Adonin N.Ju. Rjabinin V.A. Starichenko V.F.	RU2061667C1
METHOD OF PREPARING PARTIALLY FLUORINATED BENZOIC ACIDS	1999	Adonin N.Ju. Starichenko V.F.	RU2155185C1
METHOD OF DECHLORINATION OF SUBSTITUTED CHLOROAROMATIC COMPOUNDS	1998	Trukhin D.V. Adonin N.Ju. Starichenko V.F.	RU2152921C1
PROCESS FOR PREPARING DEOXYNUCLEOSIDE-$$$-TRIPHOSPHATES	1994	Bogachev V.S.	RU2080325C1
METHOD OF PRODUCTION OF LIMONENE DIEPOXIDES	2006	Bakhvalov Oleg Vasil'Evich Fomenko Vladislav Viktorovich Salakhutdinov Nariman Faridovich	RU2324690C1
1R,3S-2,2- DIMETHYL -3(2-METHYL -2- OXYPROPYL) -CYCLOPROPANECARBONITRILE AS INTERMEDIATE COMPOUND IN SYNTHESIS OF PYRETHROIDE INSECTICIDE - DELTAMETRINE AND METHOD FOR PRODUCING INTERMEDIATE COMPOUND	1989	Rukavishnikov A.V. Tkachev A.V.	RU1679760C
1S,3R - 2,2 - DIMETHYL -3(2-METHYL -2- OXYPROPYL) -CYCLOPROPANECARBONITRILE AS INTERMEDIATE COMPOUND IN SYNTHESIS OF PYRETHROID INSECTICIDE OF DELTAMETRINE AND METHOD FOR PRODUCTION OF INTERMEDIATE COMPOUND	1989	Rukavishnikov A.V. Tkachev A.V.	RU1679761C
PROCESS FOR PREPARING 1R, 3S-2,2-DIMETHYL-3-(2- OXOPROPYL)CYCLOPROPANEACETONITRILE	1989	Rukavishnikov A.V. Tkachev A.V. Volodarskij L.B. Pentegova V.A.	RU1689376C
METHOD FOR SYNTHESIS OF 3,4-EPOXYCARANE FROM 3-CARANE WITH SIMULTANEOUS PRODUCTION OF 3-CAREN-5-ONE AND 3-CARENE-2,5-DIONE	2009	Laev Sergej Sergeevich Bakhvalov Oleg Vasil'Evich Fomenko Vladislav Viktorovich Salakhutdinov Nariman Faridovich	RU2400465C1
CYCLOPROPANECARBOXYLIC ACID PYRAZOLIDES IN THE FORM MIXTURE OF DIASTEREOMERS AS INTERMEDIATE COMPOUNDS FOR PREPARATION PYPETROIDS	1995	Popov S.A. Tkachev A.V.	RU2095351C1

RU 2 128 200 C1

Authors

Adonin N.Ju.

Starichenko V.F.

Rjabinin V.A.

Dates

1999-03-27—Published

1997-01-27—Filed