Methyl substituted-2-oxohexane derivatives and processes for pre

Details Methyl substituted-2-oxohexane derivatives and processes for pre Methyl substituted-2-oxohexane derivatives and processes for pre

1983-05-24

1985-03-05

Reamer, James H.

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

Organic compounds

Oxygen containing

568385, 568879, 568840, 549526, 549512, C07C 49203, C07C 4528

Patent

active

045032599

ABSTRACT:
Described are methods for augmenting or enhancing the aroma of perfumes and perfumed articles by adding thereto perfume aroma augmenting or enhancing quantities of novel methyl substituted-2-oxohexane derivatives produced by dimerizing isoamylene (2-methyl-2-butene) and then oxidizing the resulting product using formic acid and hydrogen peroxide; and optionally reacting the resulting product with a methyl Grignard reagent such as methyl magnesium chloride followed by hydrolysis; as well as perfume compositions, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, hair preparations, perfumed polymers and deodorant compositions as well as bleaching compositions containing same.
Also covered is the genus of compounds defined according to the structure: ##STR1## wherein R.sub.1 and R.sub.2 taken together represent oxygen; or wherein, taken separately, R.sub.1 is hydroxyl and R.sub.2 is methyl or R.sub.1 is oxymagnesium halide and R.sub.2 is methyl; and wherein R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 represent hydrogen or methyl with the provisos that:

REFERENCES:
patent: 3360531 (1967-12-01), French
patent: 3382255 (1968-05-01), White
patent: 4198532 (1980-04-01), Ochaner
patent: 4304689 (1981-12-01), Boden et al.
patent: 4311617 (1982-01-01), Ansari et al.

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