2-tert-amyl compounds

Details 2-tert-amyl compounds 2-tert-amyl compounds

1993-09-30

1994-10-11

Richter, Johann

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

Diolefin product

568873, 5689095, 552265, C07C 276, C07C 278, C07C 508

Patent

active

053549376

ABSTRACT:
Tert-amyl compounds of the general formula I ##STR1## and novel processes for preparing 2-tert-amylbutadiene by dehydrating 3,4,4-trimethylhex-1-en-3-ol at from 100.degree. to 350.degree. C. and from 0.01 to 50 bar on acidic catalysts, its preparation by partially hydrogenating 3,4,4-trimethyl-hex-1-yn-03-ol at from 0.degree. to 50.degree. C. and from 0.01 to 50 bar and its preparation by reacting tert-amyl methyl ketone (3,3-dimethylpentan-2-one) with acetylene in the presence of basic catalysts at from 0.degree. to 60.degree. C. and from 0.01 to 50 bar, and also the preparation of 2-tert-amylanthraquinone by reacting 2-tert-amylbutadiene with 1,4-naphthoquinone at from 20.degree. to 200.degree. C. and from 0.01 to 50 bar to give 2-tert-amyl-1,4,4a,9a-tetrahydroanthraquinone and then oxidizing the latter in the presence of a strong base at from 0.degree. to 50.degree. C. are described.

REFERENCES:
patent: 4087458 (1978-05-01), Emori et al.
patent: 4347388 (1982-08-01), Gramlich et al.
patent: 4895984 (1990-01-01), Eggersdorfer et al.
CA 109(5): 374736, Hoshi et al, Synthesis of 2-tert-alkyl-1,3-butadienes, 1987.
CA 105(19): 171495f Toda et al, Complex of Tertiary acetylenic alcohol and brucine or sparteine, 1985.
Chem. Abstr., vol. 80, (1974) 47 709.

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