Wu, Lulu published the artcileSynthesis of Optically Active 2H-Thiopyrano[2,3-b]quinolines with Three Contiguous Stereocenters via an Organocatalytic Asymmetric Tandem Michael-Henry Reaction, SDS of cas: 5153-73-1, the publication is Advanced Synthesis & Catalysis (2013), 355(6), 1053-1057, database is CAplus.
Optically active 2H-thiopyrano[2,3-b]quinolines with three contiguous stereocenters were synthesized via a chiral bifunctional squaramide-catalyzed tandem thia-Michael-Henry reaction between 2-mercaptoquinoline-3-carboxaldehydes and nitroolefins. The reactions proceeded in high yields to give the title compounds, e.g., I, with high levels of diastereo- and enantioselectivity (up to >99/1 dr and >99% ee, resp.).
Advanced Synthesis & Catalysis published new progress about 5153-73-1. 5153-73-1 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Alkenyl,Nitro Compound,Benzene, name is (E)-4-(2-Nitrovinyl)benzonitrile, and the molecular formula is C7H8BClO2, SDS of cas: 5153-73-1.
Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts