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Creators/Authors contains: "Sumaria, C. S."

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  1. ; ; ; (, Journal of the American Chemical Society)
    Sigman, M. S. (Ed.)
    We report a general method for the syn- thesis of chiral thiosquaramides, a class of bifunctional catalysts not previously described in the literature. Thiosquaramides are found to be more acidic and significantly more soluble in nonpolar solvents than their oxosquaramide counterparts, and they are excellent cata- lysts for the unreported, enantioselective conjugate addi- tion reaction of the barbituric acid pharmacaphore to nitroalkenes, delivering the chiral barbiturate derivatives in high yields and high enantioselectivities, even with catalyst loadings as low as 0.05 mol%. 
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