181356-21-8Relevant articles and documents
The synthesis of the N-ethoxycarbonyl derivative of 5-azabicyclo[2.1.0]-pent-2-ene (Dewar pyrrole) - The first member of the parent ring-system
Warrener, Ronald N.,Amarasekara, Ananda S.,Russell, Richard A.
, p. 1519 - 1520 (1996)
N-Ethoxycarbonyl Dewar pyrrole 9, the first member of the parent ring, is formed via photofragmentation of 6 at -60°C and trapped as its adduct with 1,3-diphenylisobenzofuran 11; above this temperature, 9 is unstable and isomerises to N-ethoxycarbonylpyrrole 10.