Intermediates for making a bezofuran or benzothiophene...

Details Intermediates for making a bezofuran or benzothiophene... Intermediates for making a bezofuran or benzothiophene...

2005-02-15

2005-02-15

Desai, Rita (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C560S009000, C560S013000, C560S020000, C562S400000, C562S433000, C562S434000

Reexamination Certificate

active

06855842

ABSTRACT:
The invention concerns novel nitroaromatic compounds of general formula (I′) wherein: R, R′1, R2, Z and n are as defined in claim1. The invention also concerns a method for preparing nitroaromatic compounds nitrated in position 4. The invention further concerns the use of said compounds for preparing heterocyclic benzofuran or benzothiophene derivatives nitrated in position 5. The invention concerns particularly the preparation of 2-alkyl-5-nitrobezofuran.

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