1434647-83-2

Basic information

• Product Name: (R,R)-N′-4′-vinylbenzyl-N-4-vinylbenzenesulfonyl-1,2-diphenylethylene-1,2-diamine
• Synonyms: (R,R)-N′-4′-vinylbenzyl-N-4-vinylbenzenesulfonyl-1,2-diphenylethylene-1,2-diamine
• CAS NO: 1434647-83-2
• Molecular Weight: 494.657
• Mol File: 1434647-83-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (R,R)-N′-4′-vinylbenzyl-N-4-vinylbenzenesulfonyl-1,2-diphenylethylene-1,2-diamine(CAS DataBase Reference)
• NIST Chemistry Reference: (R,R)-N′-4′-vinylbenzyl-N-4-vinylbenzenesulfonyl-1,2-diphenylethylene-1,2-diamine(1434647-83-2)
• EPA Substance Registry System: (R,R)-N′-4′-vinylbenzyl-N-4-vinylbenzenesulfonyl-1,2-diphenylethylene-1,2-diamine(1434647-83-2)

Safety Data

• Hazardous Substances Data: 1434647-83-2(Hazardous Substances Data)

Upstream product

• 890127-34-1 (1R,2R)-N₁-(4-vinylbenzenesulfonyl)-1,2-diphenylethane-1,2-diamine 
• 1592-20-7 4-Vinylbenzyl chloride 

Relevant articles and documents

Anchored [RuCl2(p-cymene)]2 in hybrid zirconium phosphate-phosphonate coated and pillared with double-stranded hydrophobic linear polystyrene as heterogeneous catalyst suitable for aqueous asymmetric transfer hydrogenation

A novel type of phosphonate-containing polystyrene copolymers 1a-e bearing an N′-alkylated TsDPEN chiral ligand and double-stranded polystyrene chains were prepared for the first time using simple radical copolymerization of 1-phosphonate styrene with (R,R)-N′-4′-vinylbenzyl-N-4- vinylbenzenesulfonyl-1,2-diphenylethylene-1,2-diamine. Through the coprecipitation of their supported Ru polystyrene copolymers 2a-e and NaH 2PO4 with ZrOCl2, pillared hybrid zirconium phosphate-phosphonate-anchored Ru catalysts 3a-e and 4d1-d 5 were obtained as heterogeneous catalysts suitable for aqueous asymmetric transfer hydrogenation. In the aqueous asymmetric transfer hydrogenation of aromatic ketones, the anchored Ru catalysts showed good catalytic activities, chemoselectivities (～100%), and enantioselectivities (73.6% ee to 95.6% ee). The Ru catalysts retained their catalytic properties even at the fifth recycle time (92.2% conv., 92.1% ee). However, corresponding supported Ru catalyst 3d′ resulted in disappointing reusability because of the loss of ruthenium in every recycle process. The conversions of aromatic ketones were closely related to the o-, m- or p-positions of the substituents on the aromatic ring caused by shape-selective matching.