Supercritical fluid phase synthesis of methylene lactones...

Details Supercritical fluid phase synthesis of methylene lactones... Supercritical fluid phase synthesis of methylene lactones...

2007-01-23

2007-01-23

Seaman, Margaret D. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S326000

Reexamination Certificate

active

11168647

ABSTRACT:
Process for converting certain lactones to their alpha-methylene substituted forms in a supercritical or near-critical fluid phase reaction using a novel grafted catalyst that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream.

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Mechanical translation of JP 10298172, paragraph 27-33, May 12, 2006.
K. W. Hutchenson, Organic Chemical Reactions and Catalysis in Supercritical Fluid Media, Supercritical Fluid Technology in Materials Science and Engineering, Y. P. Sun (Ed)., Marcel Dekker; New York 2002, p. 87-187.
Kirk-Othmer Encyclopedia of Chem. Technology, 4th Ed., vol. 23, p. 452-477.
E. P. Barret, L. G. Joyner and P. P. Halenda, J. Amer. Chem. Soc., 73, 373, (1951).

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