5872-22-0Relevant articles and documents
Phosphine-Catalyzed Doubly Stereoconvergent γ-Additions of Racemic Heterocycles to Racemic Allenoates: The Catalytic Enantioselective Synthesis of Protected α,α-Disubstituted α-Amino Acid Derivatives
Kalek, Marcin,Fu, Gregory C.
supporting information, p. 9438 - 9442 (2015/08/11)
Methods have recently been developed for the phosphine-catalyzed asymmetric γ-addition of nucleophiles to readily available allenoates and alkynoates to generate useful α,β-unsaturated carbonyl compounds that bear a stereogenic center in either the γ or t
1-Azadienes in Heterocyclic Synthesis. Reaction of 1-N-Alkyl-1-azapenta-1,3-dienes with Mesoionic Oxazolones
Sain, B.,Sandhu, J. S.
, p. 1007 - 1010 (2007/10/02)
1-N-Alkyl-1-azapenta-1,3-dienes 2 smoothly reacted with various mesoionic oxazolones 1 to afford 3,4-dihydro-2-pyridones 3 in excellent yields and there is no evidence for the formation of any products arising from the cycloaddition on the carbon-carbon double bond or on the azomethine function.
