154307-85-4Relevant articles and documents
Unidirectional thermal electrocyclic ring forming reactions of methylenecyclobutenes from vinylallenes in the retinoid series
Rey, Jose Garcia,Rodriguez, Jesus,De Lera, Angel R.
, p. 6293 - 6296 (1993)
A unidirectional, regiospecific formation of methylenecyclobutenes from substituted divinylallenes related to the 11,7-retroretinoids has been found at temperatures considerably lower than the parent system. Kinetic data are reported for the examples stud