1041641-34-2Relevant academic research and scientific papers
Photo-ring-opening efficiency of 2,2-diphenyl-2H-1-benzopyran evaluated from addition reactivity of amines to its ring-opened isomers
Sakuragi, Masako,Kawanishi, Yuji,Suzuki, Yasuzo,Sakuragi, Hirochika
experimental part, p. 641 - 643 (2009/04/10)
Irradiation of 2,2-diphenyl-2H-l-benzopyran (DPBP) in the presence of a primary or a secondary amine gave an addition product. With a large excess of amine, the apparent quantum yield for product formation reached 0.5. This value corresponds to a minimal quantum yield for formation of DPBP colored ring-opened forms.
