Process for producing 3,3,3-trifluoropropionaldehyde

Details Process for producing 3,3,3-trifluoropropionaldehyde Process for producing 3,3,3-trifluoropropionaldehyde

2006-09-12

2009-06-09

Witherspoon, Sikarl A (Department: 1621)

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

Organic compounds

Oxygen containing

C568S488000, C568S681000

Reexamination Certificate

active

07544844

ABSTRACT:
There is provided a process for producing 3,3,3-trifluoropropionaldehyde, including the step of hydrolyzing a benzyl vinyl ether of the formula [1] in the presence of a catalyst selected from the group consisting of Arrhenius acids and Lewis acids,[Chem. 17]where R represents phenyl or phenyl having a substituent R1selected from the group consisting of alkyl groups, alkoxy groups, halogen atoms, nitro groups and amino groups.

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A.V. Popov et al., “Reaction ofN- (3,3,3-Trifluoro-2-Trifluoromethylprop-1-enyl)Dimethylamine with MgSO4•7H2O. Synthesis of 4,4-Difluoro-5-Trifluoromethyl-2-(2,2,2-Trifluoro-1-Trifluoromethylethyl)-4H-1,3-Dioxine andCis/ Trans-3-Dimethylamino-2-Trifluoromethacryloyl Fluoride”, Russian Chemical Bulletin/ Izvestiya Akademii Nauk, May 1997, pp. 1032-1033 (1069-1071), vol. 46, No. 5, Plenum Publishing Corporation, Russia.
International Search Report dated Oct. 24, 2006 with English translation of relevant portion (Three (3) pages).

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