94102-86-0Relevant academic research and scientific papers
Synthetic Applications of Intramolecular Insertion in Arylcarbenes. VII. Aryl-Substituted Benzocycloalkenylidenes
Crow, Wilfrid D.,Engkaninan-Low, U.,Pang, Y. T.
, p. 1915 - 1924 (2007/10/02)
A series of benzo-fused cyclic carbenes, bearing suitably located alkoxy substituents in the phenyl ring, has been generated in the gas phase and pyrolysed at 250 deg/0.002-0.40 mm.In all cases, carbene insertion into the adjacent C-H bond (Bamford-Stevens insertion) occurs, either exclusively or predominantly, with up to 35percent 1,5 C-H insertion in the alkoxy sidechain to form peri-fused tricyclic heterocycles.These results are rationalized in terms of geometrical and electronic effects.
