Book ChapterDOI
Thiopyrans and Their Benzo Derivatives
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The article was published on 2020-01-01. It has received 1 citations till now. The article focuses on the topics: Ring (chemistry) & Section (typography).read more
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Highly diastereo- and enantioselective direct Barbas–List aldol reactions promoted by novel benzamidoethyl and benzamidopropyl prolinamides in water
TL;DR: Four novel benzamido-functionalized prolinamides have been prepared and tested as organocatalysts for enantioselective aldol reaction of aldehydes and cyclic ketones in water, showing that lateral amide functionalities might be a key issue for facilitating "in water" chemistry.
Journal ArticleDOI
Synthesis of α-substituted vinylsulfonium salts and their application as annulation reagents in the formation of epoxide- and cyclopropane-fused heterocycles.
Johnathan V. Matlock,Sven P. Fritz,Stephen A. Harrison,Diane Mary Coe,Eoghan M. McGarrigle,Varinder K. Aggarwal +5 more
TL;DR: The α-substituted vinylsulfonium tetraphenylborates gave good to excellent yields in the epoxyannulation of β-amino ketones and the cyclopropanation of allylic amines and the diastereoselectivity was good.
Journal ArticleDOI
The highly enantioselective Michael addition of ketones to nitrodienes catalyzed by the efficient organocatalyst system of pyrrolidinyl-thioimidazole and chiral thioureido acid.
TL;DR: The highly enantioselective Michael addition reaction of ketones to nitrodienes was promoted efficiently by the accessible and fine-tunable organocatalytic system of pyrrolidinyl-thioimidazole and chiral thioureido acid.
Journal ArticleDOI
tert-Butyl esters of peptides as organocatalysts for the asymmetric aldol reaction
TL;DR: Enantioselective aldol reactions between ketones and aldehydes were shown to be catalysed by a variety of tert -butyl esters of peptides, with Pro-Glu(O t Bu)-O tBu proved to be the best, affording the product in good to excellent yields, diastereoselectivities and enantioselectedivities.
Journal ArticleDOI
Enantioselective Mannich Reactions with the Practical Proline Mimetic N-(p-Dodecylphenyl-sulfonyl)-2-pyrrolidinecarboxamide
Hua Yang,Rich G. Carter +1 more
TL;DR: A series of syn-selective Mannich reactions is reported, including the rapid access of alpha- and beta-amino acids surrogates and the use of the industrially attractive nonpolar solvents, such as 2-methyl-tetrahydrofuran.