71106-35-9Relevant academic research and scientific papers
Rhodium-Catalyzed Enantioselective [4+2] Cycloadditions of Vinylcarbenes with Dienes
Davies, Huw M. L.,Zhang, Bowen
, p. 4937 - 4941 (2020)
The reaction of 2-siloxycyclo-1,3-dienes with E-vinyldiazoacetates in the presence of the bulky chiral dirhodium tetracarboxylate catalyst, Rh2(R-p-PhTPCP)4 results in an enantioselective [4+2] cycloaddition, in which three new stereogenic centers are formed. The [4+2] cycloadducts are generated as single diastereomers with high enantiocontrol (95–98 % ee). When the diene contains an additional stereogenic center, effective kinetic resolution can be achieved.
REACTION OF CONJUGATED ENONES WITH tert-BUTYLDIMETHYLSILYL TRIFLATE AND INTRAMOLECULAR ANNELATION
Ihara, Masataka,Ishida, Yohhei,Fukumoto, Keiichiro,Kametani, Tetsuji
, p. 4102 - 4105 (2007/10/02)
Reaction of 2-cyclohexen-1-ones (3a-c) with tert-butyldimethylsilyl triflate and triethylamine gave selectively cross-conjugated dienol ethers (4a-c) except 3-methyl-2-cyclohexen-1-one (3d).Reaction of 6-(5-ethoxycarbonyl-3,3-dimethyl-4-pentenyl-1)-2-cycl
