E. Arzel et al., Synthesis of beta-substituted and alpha,beta-disubstituted delta-carbolines using a halogen-dance reaction, HETEROCYCLE, 50(1), 1999, pp. 215-226
The paper describes the first total syntheses of beta-substituted delta-car
bolines and alpha,beta-disubstituted delta-carbolines starting from benzene
and pyridine blocks using a halogen-dance reaction.