91522-17-7Relevant academic research and scientific papers
Enantioselective intermolecular carbon-carbon bond formation of glyoxylate imines with allylstannanes catalyzed by tropos BIPHEP-gold(I) complexes with Au-Au interactions
Kojima, Masafumi,Mikami, Koichi
supporting information; experimental part, p. 13950 - 13953 (2012/01/06)
Interactions act: The enantioselective allylation reaction of glyoxylate imines catalyzed by tropos DM-BIPHEP-gold(I) complexes with an Au-Au interaction was developed to give a higher enantioselectivity than the atropos DM-BINAP-gold complexes without an
Synthetic studies of carbapenem and penem antibiotics. II. Synthesis of 3-acetyl-2-azetidinones by (2 + 2) cycloaddition of diketene and schiff bases
Sasaki,Goda,Enomoto,Sunagawa
, p. 1094 - 1097 (2007/10/02)
It was found that (2 + 2) cycloaddition reaction of diketene with Schiff bases was effectively promoted by imidazole as a catalyst to afford 3-acetyl-2-azetidinone derivatives 4. As an application of this new method, a practical asymmetric synthesis of 4 and its conversion into (3S,4S)-4-carboxy-1-(di-p-anisylmethyl)-3-[(R)-1-hydroxyethyl]-2-azeti dinone, which is a key intermediate for the synthesis of carbapenem and penem antibiotics, were accomplished.
