127066-46-0Relevant academic research and scientific papers
Transition-Metal-Free Catalytic Carboalkoxylation of Styrenes at Room Temperature
Govindarajan,Ahmed, Jasimuddin,Swain, Asim Kumar,Mandal, Swadhin K.
, p. 13490 - 13502 (2019)
Herein, we describe the first transition-metal-free catalytic carboalkoxylation of styrenes with aryl diazonium salts by Meerwein addition in the presence of a phenalenyl ligand at room temperature without requiring any light stimulation. This three-compo
Photochemical Addition of Methanol to Stilbenes
Woning, Jan,Oudenampsen, Albert,Laarhoven, Wim H.
, p. 2147 - 2154 (2007/10/02)
The photochemical addition of methanol to the alkenic bond of stilbene (1) involves two competitive pathways: viz. either direct addition of methanol to the alkenic bond or insertion by methanol of a carbene (13), emerging from a 1,2-H shift in (1).From the observed effect of substituents and the wavelength on the rates of these processes, the rearrangement pathway was concluded to involve excited (1) in a vibrationally unrelaxed S1-state.The direct pathway might involve either a planar (??*) or a twisted excited S1-state of (1).The available experimental evidence precludes zwitterionic excited states from being involved in both pathways.The photochemical addition of methanol to the alkenic bond of 1,1-diphenylethene (3) follows a similar course.In this case a 1,2-Ph shift in excited (3) gives rise to carbene (13) and its insertion products.
