Technical Notes:
1.Organocatalyst used in aza-4+2 cycloaddition of N-sulfonyl-1-aza-1 ,3-dienes with vinyl ketones.
2.Catalyst for the enantioselective 3+2 cycloadditions of y-substituted allenoates with ß-perfluoroalkyl enones .
3.Organocatalyst used in effective asymmetric vinylogous Mannich reaction of isatin imines with a,a-dicyanoolefins.
4.Chiral phosphine catalyzed a-functionalization of 2-vinylpyridines via enantioselective cross Rauhut-Currierreaction.
References:
1.Org. Lett. 2017, 19, 1710.
2.Chem. Sci., 2017, 8, 4660.
3.Org. Chem. Front.. 2017, 4, 101.
4.Org Lett. 2018, 20, 1304.
Strem