Enantioselective Iridium-Catalyzed Allylic Alkylation Reactions of Masked Acyl Cyanide Equivalents
The first enantioselective iridium-catalyzed allylic alkylation reaction of a masked acyl cyanide (MAC) reagent has been developed. The transformation allows for the use of an umpoled synthon, which serves as a carbon monoxide equivalent. The reaction proceeds with good yield and excellent selectivity up to gram scale for a wide range of substituted allylic electrophiles, delivering products amenable to the synthesis of highly desirable, enantioenriched vinylated α-aryl carbonyl derivatives.
Additional Information© 2017 American Chemical Society. Received 14 February 2017. Published online 14 March 2017. The NIH-NIGMS (R01GM080269) and Caltech are thanked for support of our research program. Additionally, J.C.H. thanks the Camille and Henry Dreyfus postdoctoral program in Environmental Chemistry, and S.E.S. thanks the NIH-NIGMS for a predoctoral fellowship (F31GM120804). Dr. Mona Shahgholi (Caltech) and Naseem Torian (Caltech) are thanked for mass spectrometry assistance. Dr. Scott Virgil (Caltech) is thanked for assistance with instrumentation. J.C.H. and S.E.S. contributed equally. The authors declare no competing financial interest.
Accepted Version - nihms867310.pdf
Supplemental Material - ol7b00449_si_001.pdf