2-Alkyl-3-cyclopentenones were prepared in moderate yields starting from tetrahydrothiopyran-4-one by the one-pot Ramberg–Bäcklund reaction of 6-alkyl-1,4-dioxa-8-thiaspiro[4.5]decane 8,8-dioxides, followed by acid catalyzed de-dioxolanation.
Nitrile and uses of same in perfumes, colognes and perfumed articles
申请人:International Flavors & Fragrances Inc.
公开号:US04331611A1
公开(公告)日:1982-05-25
Described is the nitrile having the structure: ##STR1## which defines one or a mixture of the isomers: ##STR2## uses thereof as intermediates and in augmenting or enhancing the aroma of perfumes or perfumed articles.