154307-85-4Relevant academic research and scientific papers
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
Structural effects affecting the thermal electrocyclic ring closure of vinylallenes to alkylidenecyclobutenes
López, Susana,Rodríguez, Jesús,Rey, José García,De Lera, Angel R.
, p. 1881 - 1891 (2007/10/03)
The thermal electrocyclic ring closure of (2E,7E)-3,4,7-trialkylnona-2,4,5,7-tetraenes (divinyl-4,5-allenes) is regioselective, occurring at the most sterically congested vinylallene subunit to afford the trisubstituted alkylidenecyclobutene. Ring closure
