69892-24-6Relevant academic research and scientific papers
THE 1,1-BIS(ALKYLTHIO)ALKENYL GROUP AS INITIATOR IN THE ELECTROPHILIC CYCLIZATION OF POLYENES
Mizyuk, V. L.
, p. 1098 - 1107 (2007/10/02)
The Z- and E-6-methyl-9-(1,3-dithia-2-cyclohexylidene)-5-nonen-2-ones were obtained from Z- and E-4-methyl-8-oxo-4-nonen-1-als and (1,3-dithia-2-cyclohexylidene)trialkoxyphosphoranes in the Wittig reaction.Their electrophylic cyclization by the action of trifluoroacetic acid with various methods for stabilization of the bicyclic oxonium salts was studied.Hydrolysis leads to 3-methyl-2-(3-oxobutyl)-2-cyclohexen-1-one, while reduction with triethylsilane or sodium borohydride gives 1,3-dimethyl-7-(1,5-dithia-1,5-pentamethylene)-2-oxabicyclodecanes as the main reaction products.A stereochemical reaction path is proposed.It was concluded that the 1-bis(alkylthio)alkenyl group is an effective initiator of the electrophilic cyclization of 1,5-polyenes.
Unsaturated alicyclic compounds, their use as perfuming and flavoring ingredients
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, (2008/06/13)
Unsaturated alicyclic compounds of formula STR1 having a methyl radical bound to the carbon atom in position 5 or 6 of the ring, possess interesting perfuming and flavoring properties and consequently they can be used advantageously in the fragrance and flavor industry. They can develop various notes of green, flowery, fruity and fresh type.
