Process for 3-(2-(7-chloro-2-quinolinyl)ethenyl) - benzaldehyde

Details Process for 3-(2-(7-chloro-2-quinolinyl)ethenyl) - benzaldehyde Process for 3-(2-(7-chloro-2-quinolinyl)ethenyl) - benzaldehyde

1998-01-23

1999-02-09

MacMillan, Keith D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546152, 546175, C07D21536

Patent

active

058696733

ABSTRACT:
The yield of monoaldehyde ##STR1## from 7-chloroquinaldine and isophthalaldehyde is increased to about 82% by using a 2 molar excess of isophthalaldehyde, conditions favoring precipitation of product during the reaction and recycling unreacted isophthalaldehyde. The recycling leads to a reduced net consumption of about 1.2 molar equivalents of isophthalaldehyde.

REFERENCES:
patent: 4851409 (1989-07-01), Young et al.
patent: 4883878 (1989-11-01), Amato et al.
patent: 5281593 (1994-01-01), Gilmore et al.
patent: 5428171 (1995-06-01), Young et al.

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