Preparation of aliphatic, unsaturated nitriles

Details Preparation of aliphatic, unsaturated nitriles Preparation of aliphatic, unsaturated nitriles

1998-08-31

1999-04-06

Richter, Johann

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

Organic compounds

Nitriles

C07C25300

Patent

active

058920927

ABSTRACT:
A process for preparing unsaturated nitriles of the formula I ##STR1## where R, R.sup.1 and R.sup.2 are each independently of one another alkyl or alkenyl each having 1-20 carbon atoms or cycloalkyl or cycloalkenyl each having 3-12 carbon atoms and any two of the radicals R, R.sup.1 and R.sup.2 may be part of a saturated or unsaturated ring and R.sup.1 and R.sup.2 may also be hydrogen and n is 0 or 1-20, by dehydration of oximes of the formula II ##STR2## where R, R.sup.1, R.sup.2 and n are as defined above, comprises dehydrating in the gas or liquid phase at from 150.degree. to 300.degree. C. over a heterogeneous catalyst consisting of an oxidic, carbidic or nitridic support doped with basic oxides and/or hydroxides or compounds which are converted into said oxides or hydroxides under the reaction conditions, or of said basic oxides.

REFERENCES:
patent: 5514830 (1996-05-01), Oku et al.
Alexander J. Fatiadi, "Preparation and Synthetic Applications of Cyano Compounds", the Chemistry of Functional Groups, Supplement C, Part 2, 1983, pp. 1057-1303.
M.N. Rao "A New Method for the Conversion of Aldoximes into Nitriles with Zeolites", Org. Prep. Proceed. Int., vol. 21, No. 2 (1989), pp. 230-232.
Houben-Weyl, "Methoden Der Organischen Chemie", vol. 8 pp. 325-330.
H.M. Meshram, "Dehydration of Alixoimes to Nitriles with Clay", Indian Institute of Chemical Technology, Organic Chemistry Division 1, Synthesis, Oct. 1992, pp. 943-944.
Orazio Attanasi, et al., "Effect of Metal Ions in Organic Synthesis; XVII, Mild, Easy, and High-Yield Conversion of Aldoximes into Nitriles Under Copper (II) Acetate-Catalysis", Synthesis Communications, Sep. 1983, pp. 741-742.
H.M. Sampath Kumar, et al., "Microwave Promoted Rapid Dehydration of Aldoximes to Nitriles on a Solid Support", Organic Division-I, Indian Institute of Chemical Technology, Synthetic Communications, 27(8), (1997), pp. 1327-1333.

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