Methylenelactones syntheses in supercritical fluids

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C549S264000, C549S266000, C549S268000, C549S273000, C549S275000, C549S295000, C549S297000

Reexamination Certificate

active

07314942

ABSTRACT:
Alpha-methylenelactone is produced from butyrolactone and valerolactone by the addition of formaldehyde in a supercritical fluid.

REFERENCES:
patent: 5166357 (1992-11-01), Orlek et al.
patent: 6232474 (2001-05-01), Brandenburg et al.
patent: 6313318 (2001-11-01), Coulson et al.
patent: 2 695 931 (1994-03-01), None
patent: 10120672 (1998-05-01), None
patent: WO 00 58297 (2000-10-01), None
Bartle et al J. Phys. Shem. Ref. Data vol. 20 No. 4 (1991) pp. 713-756.
Christopher Rayner ,Use of supercritical fluids as environmentally benign solvents Department of Chemical Engineering University of Notre Christopher Rayner (1998).
A. W. Murray and R. G. Reid, Convenlent Synthesis of a-Epoxylactones (4-Oxo-1,5-dioxaspiro[2.4]heptanes and -[2.5]pctanes), Synthesis, 1985, vol. 1, pp. 35-38.
Keith 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) pp. 87-187.
The Properties of Gases and Liquids. Poling, Bruce; Prausnitz, John: and O'Connell, John. Fifth Edition. McGraw-Hill, Inc. 2001. pp. A20-A21and A12-A13.
Lange's Handbook of Chemistry. Dean, John A. Fifteenth Edition. McGraw-Hill, Inc. 1999. p. 5. 108.
A Stimulatory Phalloid Organ in a Weaver Bird. Blanchard, Lynnette; Hancut, Dan; Beckman, Eric; and Brennecke, Joan. Nature. vol. 399 May 6, 1999. Scientific Correspondence. 1999 Macmillan Magazines, Ltd. pp. 28-29.
Recovery of Organic Products From Ionic Liquids Using Supercritical Carbon Dioxide. Blanchard, Lynnette and Brennecke, Joan. Ind. Eng. chem. Res. 2001, 40, 287-292.
High-Pressure Phase Behavior of Ionic Liquid/CO2 Systems. Blanchard, Lynnette; Gu, Zhiyong; and Brennecke, Joan. J. Phys. Chem. B 2001, 105, 2437-2444.
Solubilities of Solids and Liquids of Low Volatility in Supercritical Carbon Dioxide. Bartie, K. D.; Clifford, A. A.; Jafar, S. A.; and Shilstone, G. F. J. Phys. Chem Ref. Data, vol. 20, No. 4, 1991, 713-756.
http://www.nd.edu/˜enviro/supercritical.html.
http://www.chem.leeds.ac.uk/People/CMR/props.html.

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