Author Topic: 2,5-diMeO-Cl-benzene one step  (Read 1786 times)

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PolytheneSam

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2,5-diMeO-Cl-benzene one step
« on: June 05, 2002, 03:08:00 PM »
Swiss patent (application?) 605512A

PUB-NO:  CH000605512A
DOCUMENT-IDENTIFIER:  CH 605512 A
TITLE:  TITLE DATA NOT AVAILABLE

PUBN-DATE: September 29, 1978

INVENTOR-INFORMATION:
NAME                                         COUNTRY
MILLAUER, HANS DR                            N/A
PISTORIUS, RUDOLF                            N/A

ASSIGNEE-INFORMATION:
NAME                                         COUNTRY
HOECHST AG                                   N/A

APPL-NO:  CH01156376
APPL-DATE: September 10, 1976

PRIORITY-DATA: CH01156376A (September 10, 1976)
INT-CL_(IPC): C07C043/28
EUR-CL (EPC): C07C041/00; C07C043/28

ABSTRACT:
Chlorinated hydroquinone  dimethylethers prepn. from para benzoquinone
tetramethylketals and hydrochloric acid in one step

Patent CH605512



Maybe you can substitute HBr or HI for HCl to get the Br and I derivatives.


http://www.geocities.com/dritte123/PSPF.html
The hardest thing to explain is the obvious