292038-60-9Relevant academic research and scientific papers
1,3-Dimethoxy-5-methylene-1,3-cyclohexadiene Compounds with Leaving Groups at C6: Generation, Solvolytic Reactivity, and Their Importance in the Photochemistry of 3,5-Dimethoxybenzyl Derivatives
DeCosta,Howell,Pincock,Pincock,Rifai
, p. 4698 - 4705 (2000)
The photochemistry of 3,5-dimethoxybenzyl compounds with the leaving groups acetate (1a), chloride (1b), bromide (1c), iodide (1d), diethyl phosphate (1e), and trimethylamine (1f), as the chloride, was examined by both product studies and flash photolysis. The isomeric triene, 5-methylene-1,3-cyclohexadiene derivative was observed for the acetate (2a), diethyl phosphate (2e) and trimethylammonium chloride (2f). The solvolysis of these derivatives, 2, was examined in alcohol solvents and the rate correlation with YOTS values gave m = 0.47 (2a) and 0.63 (2e), suggesting SN1 reactivity but with an early transition state. Quantum yields for formation of 2a and 2e indicated that these trienes play only a minor role (～16%) in the overall photochemistry of the corresponding arylmethyl substrates.
A time-resolved spectroscopic study of the bichromophoric phototrigger 3',5'-dimethoxybenzoin diethyl phosphate: Interaction between the two chromophores determines the reaction pathway
Chensheng, Ma.,Kwok, Wai Ming,An, Hui-Ying,Guan, Xiangguo,Fu, Michael Yunyi,Toy, Patrick H.,Phillips, David Lee
supporting information; experimental part, p. 5102 - 5118 (2010/08/05)
3',5'-Dimethoxybenzoin (DMB) is a bichromophoric system that has widespread application as a highly efficient photoremovable protecting group (PRPG) for the release of diverse functional groups. The photodeprotection of DMB phototriggers is remarkably cle
