70008-81-0Relevant articles and documents
Trisulfur-Radical-Anion-Triggered C(sp2)-H Amination of Electron-Deficient Alkenes
Nguyen, Khang X.,Nguyen, Thao T.,Nguyen, Tung T.,Pham, Hoai T. B.,Pham, Phuc H.,Phan, Nam T. S.,Wang, Haobin,Yang, Chou-Hsun
supporting information, p. 9751 - 9756 (2020/12/21)
A trisulfur-radical-anion (S3˙-)-triggered C(sp2)-H amination of α,β-unsaturated carbonyl derivatives with simple amines has been demonstrated. This protocol provides convenient access to a variety of synthetically valuable N-unprotected and secondary β-enaminones with absolute Z selectivity and tertiary β-enaminones with E selectivity. Mechanistic probe and electronic structure theory calculations suggest that S3˙- initiates the nucleophilic attacks via a thiirane intermediate.
Straightforward Novel One-Pot Enaminone and Pyrimidine Syntheses by Coupling-Addition-Cyclocondensation Sequences
Karpov, Alexei S.,Mueller, Thomas J. J.
, p. 2815 - 2826 (2007/10/03)
The coupling of acid chlorides 1 with terminal alkynes 2 using only one equivalent (!) of triethylamine under Sonogashira conditions followed by subsequent addition of primary or secondary amines 4 to the intermediate alkynones 3 represents a straight-for
The influence of substituents on the photochemical generation and stability of 2-morpholinocyclopropanols
Weigel,Schiller,Reck,Henning
, p. 6737 - 6740 (2007/10/02)
By irradiation in oxygen-free ether α- or β-substituted β-morpholinopropiophenones 1a-c form the corresponding cyclopropanols 2 with 1-aryl and 2-morpholino group in a relative cis-configuration in high yields. The photocyclization of pure 1a-c enantiomer
