89862-82-8

Upstream product

• 811-98-3 d⁽⁴⁾-methanol 
• 89862-65-7 4-Diazoacetyl-1-phenyl-2-azetidinon 
• 77692-61-6 1-Phenyl-4-oxo-azetidin-2-carbonsaeure 
• 65837-48-1 1-Phenyl-4-oxo-azetidin-2-carbonsaeurechlorid 

Relevant academic research and scientific papers

Synthesis of 1-Aryl-4-carboxymethyl-2-azetidinones

The photochemically induced rearrangement of the 4-diazoacetyl-2-azetidinones 2a-d in water/acetonitrile leads exclusively to the title compounds 3a-d provided that certain reaction conditions are fulfilled.This is in contrast to the thermal, silveroxide catalysed Wolff-rearrangement of 2a in alcohols which always gives a mixture of 4, 5 and 6.The mechanism of the 1,4-ringopening of 2a to 5 and 6 is discussed. - Keywords: 1-Aryl-4-carboxymethyl-2-azetidinones, 1-Aryl-4-diazoacetyl-2-azetidinones, Diazomethane, Pentendicarboxylicacidesterhalfanilides, Wolff-Rearrangement