Preparation of 3,3-dimethyl-pent-4-enoic acid amides

Details Preparation of 3,3-dimethyl-pent-4-enoic acid amides Preparation of 3,3-dimethyl-pent-4-enoic acid amides

1980-08-07

1981-11-24

Demers, Arthur P.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

260326SE, 546245, 564204, 564205, C07C10200, C07D29510

Patent

active

043025846

ABSTRACT:
A process for the preparation of 3,3-dimethyl-pent-3-enoic acid amides of the formula I ##STR1## where R.sup.1 and R.sup.2 may be identical or different and each is alkyl of 1 to 4 carbon atoms, or R.sup.1 and R.sup.2 together with the nitrogen on which they are present as substituents form a 5-membered or 6-membered saturated ring which may contain a further hetero-atom,
wherein an acetamido-acetal or ketene-acetal-aminal is reacted with 3-methyl-but-2-en-1-ol at from 80.degree. to 220.degree. C., in the presence or absence of an inert organic solvent. The products are valuable intermediates for the preparation of insecticidal cyclopropanecarboxylic acid esters.

REFERENCES:
Felix et al., Helv. Chim. Acta 52, (1969), pp. 1030-1034.
Wick et al., Helv. Chim. Acta 47, (1964), pp. 2425-2429.
Roux et al., Con. J. Chem. 47, (1969), pp. 4455-4458.
Bredereck et al., Chem. Bericht. 96, (1963), pp. 1350-1355.
Meerwein et al., Annalen 641, (1961), pp. 1-39.

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