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Merck

A regioselective synthesis of poly-substituted aryl triflones through self-promoting three component reaction.

Chemical communications (Cambridge, England) (2011-05-25)
Hikaru Yanai, Masaya Fujita, Takeo Taguchi
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In the absence of any additional catalysts, the reactions of (CF(3)SO)(2)CH(2), aldehydes, and 1,3-dienes gave gem-bis(triflyl)cyclohexenes in excellent yields with high regioselectivity. gem-Bis(triflyl)cyclohexene products can be easily converted to the corresponding aryl trifluoromethyl sulfones.

MATERIALS
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Sigma-Aldrich
Cyclohexene, inhibitor-free, ReagentPlusยฎ, 99%
Supelco
Cyclohexene, analytical standard, ≥99.5% (GC)
Sigma-Aldrich
Cyclohexene, contains 100 ppm BHT as inhibitor, ≥99.0%