307494-24-2

Upstream product

• 97-51-8 5-Nitrosalicylaldehyde 
• 54464-77-6 (S)-2-amino-1,1-di(2-n-butoxy-5-t-butylphenyl)propanol 

Downstream Products

• 374934-47-1 [(2S)-N-(5-nitrosalicylidene)-2-amino-1,1-di(5-tert-butyl-2-n-butoxyphenyl)-1-propanol] copper complex 

Relevant academic research and scientific papers

Asymmetric cyclopropanation of styrene catalyzed by Cu-(chiral Schiff-base) complexes

Asymmetric cyclopropanation of olefins was carried out with chiral copper-Schiff base complexes derived from copper acetate monohydrate, substituted salicylaldehydes and a chiral amino alcohol. Substituents on salicylaldehyde framework demonstrate a significant effect on the steroselectivities. Those with electron-withdrawing properties enhance the selectivities, whereas bulky sustituents in ortho position to the phenol hydroxy group decrease the selectivities. An ee of more than 98% was achieved for the reaction of styrene with diazoacetate. (C) 2000 Elsevier Science Ltd.

METHOD FOR PRODUCING ASYMMETRIC COPPER COMPLEX CRYSTAL

A method of producing an asymmetric copper complex crystal comprising reacting an optically active salicylidene amino alcohol compound with a copper compound, then, performing a crystallization treatment in the presence of an alcohol solvent.