Chlorination and elimination process and some products thereof

Details Chlorination and elimination process and some products thereof Chlorination and elimination process and some products thereof

1991-11-07

1993-07-13

Pal, Asok

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

585469, 585641, 570226, 570230, C07C 500

Patent

active

052275604

ABSTRACT:
Active methine compounds are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the presence of a phase transfer catalyst which is an tetraalkylonium hydroxide. Chlorinated products, preferably tertiary alkyl chloro compounds, are produced. The tertiary alkyl chloro compounds are useful in elimination reactions, preferably reactions with base, to form unsaturated compounds, particularly compounds having a vinylidene or exomethylene group.

REFERENCES:
patent: 3225106 (1965-12-01), Rabinowitz
patent: 3399241 (1968-08-01), Smith
patent: 3484482 (1969-12-01), Schmerling
patent: 3627731 (1971-12-01), Curcio et al.
patent: 3726932 (1973-04-01), Mullin et al.
patent: 3830862 (1974-08-01), Meyers et al.
patent: 3876689 (1975-04-01), Meyers et al.
patent: 3896164 (1975-07-01), Meyers et al.
patent: 3935289 (1976-01-01), de Radzitzky d'Ostrowick et al.
patent: 3949001 (1976-04-01), Meyers et al.
patent: 3953494 (1976-04-01), Meyers et al.
patent: 3992432 (1976-11-01), Napier et al.
patent: 4008287 (1977-02-01), Verbrugge et al.
patent: 4105702 (1978-08-01), Mullin et al.
patent: 4132611 (1979-01-01), Baizer et al.
patent: 4192822 (1980-03-01), Sweeney et al.
patent: 4226783 (1980-10-01), Marsh
patent: 4297514 (1981-10-01), Ma
patent: 4467122 (1984-08-01), Szabolcs
patent: 4593144 (1986-06-01), Chupp et al.
patent: 4675458 (1987-06-01), Riemann et al.
patent: 4684678 (1987-08-01), Schultz et al.
patent: 4922038 (1990-05-01), Krespan et al.
patent: 4931594 (1990-06-01), Knebel et al.
Jonczyk et al: "Reactions of Carbon Tetrachloride with Carbon Acids Catalytic Two-Phase System", Journ. Org. Chem. 1979, vol. 44, pp. 1192-1194.
Lauritzen et al: "Chlorinations with Carbon Tetrachloride under Conditions of Phase Transfer Catalysis", Acta. Chem. Scand., 1981 vol. 35, pp. 263-268.
Reeves et al; "Halogenation by Phase Transfer Catalysis" Israel Jour. Chem., 1985, vol. 26, pp. 225-228.
CA 28:4392 (1934).
CA 72:66438s (1970).
CA 90:151235q (1979).
CA 105:225897j (1986).
Ida Smedley in J. Chem. Soc. 87 (1905) pp. 1249-1255.
Ray and Albertson in J. Am. Chem. Soc., 70, pp. 1154-1155, 1954.
Greenhow, Harris, and White in J. Chem. Soc., pp. 3116-3121 (1954) (CA50:263).
Ol'dekop and Kalinina in Zhurnal Obshchei Khimii, 30, pp. 3358-3361 (1960) (CA 55:18632).
Herbert O. House in Modern Synthetic Reactions, 3, pp. 156-162 (1965).
Makoszu, et al. in Tetrahedron Lett., 53 (1969) pp. 4659-4662.
P. W. Morgan in Macromolecules (1970) pp. 536-544.
Susuki and Tsuji in J. Org. Chem. 35, No. 9, (1970) pp. 2982-2986.
V. Heasley et al in J. Org. Chem. 39, No. 5, pp. 736-737 (1974).
A. Brandstrom in "Principles of Phase-Transfer Catalysis by Quaternary Ammonium Salts" in V. Gold et al(ed) Advances in Physical Organic Chemistry (1977) pp. 267-330.
E. Dehmlow et al in Tetrahedron Lett. 27 (1977) pp. 2361-2364.
Meyers et al in Cayalysis in Organic Syntheses pp. 197-278 (1977).
Alneri, Bottaccio, and Carletti in Tetrahedron Lett. 24, pp. 2117-2118 (1977).
Arnold and Kulenovic in J. Org. Chem 43, No. 19, (1978) pp. 3687-3689.
Magid et al in J. Org. Chem., 44, No. 3, pp. 359-363 (1979).
Jonczyk, Kwast, and Makosza in J. Org. Chem, 44 No. 7 (1979) pp. 1192-1194.
Lauritzen et al in Acta Chemical Scandinavica 35, pp. 263-268 (1981).
Chen et al in Journal of App. Polmer Source vol. 27, 3289-3312 (1982).
Dehmlow and Dehmlow in Phase Transfer Catalysis pp. 1-22 (1983).
Reeves et al in Israel Journal of Chemistry 26, pp. 225-228 (1985).
Chupp et al, in Synthesis 1986 (2) pp. 224-226.

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