Use for preparing smoking tobacco compositions of spiropyran der

Details Use for preparing smoking tobacco compositions of spiropyran der Use for preparing smoking tobacco compositions of spiropyran der

1979-04-06

1980-12-23

Millin, V.

Tobacco

Cigar or cigarette making

Including cooperating surfaces to induce rolling

131 17R, 131144, A24B 312

Patent

active

042404479

ABSTRACT:
Described are spiropyran derivatives useful in preparing smoking tobacco compositions and flavoring compositions for tobacco having the structure: ##STR1## wherein R.sub.1 is hydrogen or methyl; wherein R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 represents hydrogen or C.sub.1 -C.sub.5 lower alkyl; wherein when one of R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 or R.sub.7 is any of C.sub.2 -C.sub.5 lower alkyl, each of the other of the R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 moieties is hydrogen; wherein each of the dashed lines represents a carbon-carbon single bond or a carbon-carbon double bond, with at least one of the dashed lines being a carbon-carbon single bond. In tobacco flavoring such compounds give rise to aromatic, sweet, minty and cooling notes.

REFERENCES:
patent: 4010286 (1977-03-01), Hall et al.

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