产品介绍：
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 v-substituted allenoates with ß-perfluoroalkyl enones.
3.Phosphine catalyst for difunctionalization of ß-fluoroalkyl a, ß-Enones to generate ß-amino a-diazo carbonyl compounds .
References:
1.Org. L ett.2017, 19, 1710.
2.Chem. Sci., 2017, 8, 4660
3.Angew. Chem. Int. Ed. 2018, 57, 15787.
