92098-20-9Relevant articles and documents
On the Thermal Behavior of Schiff Bases of Retinal and Its Analogues: 1,2-Dihydropyridine Formation via Six-?-Electron Electrocyclization of 13-Cis Isomers
Lera, Angel R. de,Reischl, Wolfgang,Okamura, William H.
, p. 4051 - 4063 (2007/10/02)
Reaction of 13-tert-butyl-13-cis-retinal (3a) with n-butylamine affords n-butyl Schiff base 3b, which affords the electrocyclized dihydropyridine (DHP) 7b with a half-life of ca. 11 min at 23 deg C in benzene-d6.The corresponding 11,13-dicis Sc