Process for the preparation of...

Details Process for the preparation of... Process for the preparation of...

2006-10-10

2006-10-10

Witherspoon, Sikarl A. (Department: 1621)

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

Organic compounds

Oxygen containing

C568S316000

Reexamination Certificate

active

07119234

ABSTRACT:
The present invention relates to a method for the preparation of as 1-(4-Chlorophenyl)-4,4-dimethylpent-1-ene-3-one, also known as Phenyl aldol. The process of the present invention utilizes catalysts. The process enables the manufacture of the Phenyl aldol in the absence of a solvent and without crystalization or filtration steps. Yields in the range of about greater than 95% with purities in the range of about greater than 95% have been obtained with the present invention.

REFERENCES:
patent: 4010204 (1977-03-01), Koster et al.
patent: 6417406 (2002-07-01), Krill et al.
patent: 6960964 (2005-11-01), Matsuo et al.
patent: 39 21 167 (1990-10-01), None
patent: 40 04 031 (1990-10-01), None
patent: 2 253 505 (1975-07-01), None
Polish Journal of Chemistry, vol. 56, month unavailable, 1982, Issue 10-12, pp. 1435-1445 Angel Garcia-Raso et al, “Activated Ba(OH)2as Catalyst in Organic Synthesis”.

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