Described are furyl and phenyl mercaptals defined according to the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or no bond; wherein R.sub.1 and R.sub.2 are the same or different and each represents hydrogen, methyl or ethyl; wherein p is 0 or 1; and wherein X represents a phenyl moiety having the structure: ##STR2## or a furyl moiety having the structure: ##STR3## and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
Furyl and phenyl mercaptals and use thereof in augmenting or enhancing
申请人:International Flavors & Fragrances Inc.
公开号:US04515968A1
公开(公告)日:1985-05-07
Described are furyl and phenyl mercaptals defined according to the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or no bond; wherein R.sub.1 and R.sub.2 are the same or different and each represents hydrogen, methyl or ethyl; wherein p is 0 or 1; and wherein X represents a phenyl moiety having the structure: ##STR2## or a furyl moiety having the structure: ##STR3## and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
Chemoselective Synthesis of Dithioacetals from Bio-aldehydes with Zeolites under Ambient and Solvent-free Conditions
作者:Hu Li、Tingting Yang、Anders Riisager、Shunmugavel Saravanamurugan、Song Yang
DOI:10.1002/cctc.201601687
日期:2017.3.20
class of versatile compounds extensively applied in pharmaceuticals, separations, electrochemistry, and organic synthesis, but few heterogeneous catalytic systems are reported to be generally applicable for their synthesis from a wide range of substrates. A series of commercial and modified zeolites are excellent catalysts for thioacetalization of different thiols with carbonylcompounds, including biomass‐derived