22679-61-4

Upstream product

• 22761-20-2 2,2'-diethyl-benzophenone 
• 21450-63-5 2-ethylphenylmagnesium bromide 
• 109-94-4 formic acid ethyl ester 
• 1973-22-4 1-bromo-2-ethylbenzene 
• 22927-13-5 2-ethylbenzaldehyde 
• 76118-05-3 2-ethylbenzoyl chloride 
• 612-19-1 2-ethylbenzoic acid 

Downstream Products

• 22761-20-2 2,2'-diethyl-benzophenone 
• 1600-20-0 (2-{2-[Bis-(2-ethyl-phenyl)-methoxy]-ethoxy}-ethyl)-dimethyl-amine 
• 93653-39-5 2,2'-Diethyl-benzhydrylchlorid 
• 60423-49-6 2-[Bis-(2-ethyl-phenyl)-methyl]-indan-1,3-dione 
• 907210-95-1 C,C-bis-(2-ethyl-phenyl)-methylamine 
• 907210-87-1 (E)-N-benzylidenebis(2-ethylphenyl)methanamine 
• 856192-33-1 2,2',2''-triethyl-trityl chloride 
• 855868-87-0 tris-(2-ethyl-phenyl)-methanol 
• 7782-24-3 (S)-2-Phenylpropionic acid 
• 1252576-26-3 C₂₆H₂₈O₂ 
• 7782-26-5 (R)-2-Phenylpropionic acid 

Relevant academic research and scientific papers

Design of Bronsted acid-assisted chiral Bronsted acid catalyst bearing a bis(triflyl)methyl group for a Mannich-type reaction

A new Bronsted acid-assisted chiral Bronsted (chiral BBA) acid catalyst (1) was developed by substituting a hydroxy group of optically active 1,1′-bi(2-naphthol) with a stronger Bronsted acidic group such as a bis(trifluoromethanesulfonyl)methyl group. The enantioselective Mannich-type reaction of ketene silyl acetals with aldimines catalyzed by (R)-1 in the presence of stoichiometric achiral proton sources gave (S)-β-amino esters in high yield with moderate to good enantiomeric excesses.