Palladium-Catalyzed Domino Carbopalladation/C–H Activation for the Synthesis of Tetrasubstituted Alkenes Bearing Five- and Seven-Membered Rings
摘要:
A Pd-catalyzed domino carbopalladation/C-H-activation reaction of phenoxyphenyl-substituted propargylic alcohols was used for the synthesis of tetrasubstituted alkenes bearing either a dihydroindene or benzo[7] annulene motif. These compounds are of interest for the construction of molecular switches and motors.
Enantioselective trifluoromethylthiolation, especially of alkenes, is a challenging task. In this work, we have developed an efficient approach for enantioselective trifluoromethylthiolating lactonization by designing an indane‐based bifunctional chiral sulfide catalyst and a shelf‐stable electrophilic SCF3 reagent. The desired products were formed with diastereoselectivities of >99:1 and good to excellent