935756-03-9Relevant articles and documents
Interaction of β-lactam carbenes with aryl isonitriles: An unprecedented rearrangement of 2-azetidinonylidene indoles to δ-carbolinones
Cheng, Ying,Cheng, Lan-Qing
, p. 2625 - 2630 (2007/10/03)
The reaction of/3-lactam carbenes with aryl isonitriles proceeded in a novel [2 + 2] fashion to give high yields of 2-azetidinonylidene indoles 4, which underwent an unprecedented rearrangement to furnish 4-arylimino-(δ- carbolin-2-ones 5 in almost quanti