14087-70-8Relevant articles and documents
A novel synthetic pathway to 1R- and 1S-dihydrochrysanthemolactones from (+)-3-carene
Rukavishnikov,Tkachev
, p. 1049 - 1060 (2007/10/02)
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Tetra-alkyl-2,2,5,5-cyclohexanone-4-ol-1 and sulphonylated derivatives thereof
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, (2008/06/13)
STR1 New tetra-alkyl-2,2,5,5 cyclohexanone-4-ol-1 and their sulfonated derivatives of the general formula (I), wherein R and R', which may be the same or different, represent an alkyl radical (1-5 atoms of carbon) and R' represents a hydrogen atom or a radical SO--R'" wherein R'" represents an alkyl radical (1-5 atoms of carbon) or an aryl radical (6-14 atoms of carbon), their preparation intermediaries and process, as well as their application to the synthesis of cyclopropanic lactones having the cis structure.
Studies of Chrysanthemic Acid Derivatives: Catalyses Reactions of 3-(2-Hydroxymethyl-3,3-dimethylcyclopropyl)-2-methylpropanol and Formation of a Novel Eight-membered Cyclic Sulphite
Crammer, Bernard,Goldschmidt, Zeev,Ikan, Raphael,Cohen, Shmuel
, p. 887 - 891 (2007/10/02)
Acid catalysed reaction of the cyclopropanediol (3) derived from cis-chrysanthemic acid cis-(1) afforded, depending on the reaction conditions, 3-vinyl-2,2,5,5-tetramethyltetrahydrofuran (4) and 4,4,7,7-tetramethyl-3-oxabicycloheptane (5).On treatment with thionyl chloride-pyridine complex there was obtained in addition the eight-membered cyclic sulphite, 6,6,9,9-tetramethyl-3,5-dioxa-4-thiabicyclononane 4-oxide (6).X-Ray analysis confirms a boat-chair conformation with the S=O group trans to the cyclopropane ring in an equatorial situation.Thermal reaction of (6) gave either (4) or a mixture of (5), cis-chrysanthemol (7), and cis-isochrysanthemol (8).
