Ring-strain effects on the efficiencies and deuterium effects on the efficiencies and regioselectivities of the di-π-methane rearrangement of bicyclic systems
作者:Helfried Hemetsberger、Frank Nispel
DOI:10.1016/s0040-4020(01)90518-6
日期:1990.1
synthesized and irradiated under sensitized conditions. The compounds 12 - 15 yielded di-π-methanerearrangement products. 16 was not reactive. The quantum yields for product formation were measured. They increase with ring strain of the bicyclic systems. A kinetic isotope effect on the regiospecifity of the rearrangement was observed in all cases. In addition, an isotope effect on the quantum yields of
[4]Paracyclophane: electronic absorption spectrum and trapping by alcohols
作者:Takashi Tsuji、Shinya Nishida
DOI:10.1039/c39870001189
日期:——
[4]Paracyclophane (2) is generated photochemicallyfrom1,4-tetramethyleneDewarbenzene; its electronicabsorption spectrum and trapping reaction by alcohols are reported.
[4]吡喃环烷(2)由1,4-四亚甲基杜瓦瓶以光化学方式产生。报道了其电子吸收光谱和醇的捕集反应。
Contact chemical shifts for the carbon atoms of nickel complexes of the 4-alkylanilines. The factors governing the EPR hyperfine constants of carbon atoms
作者:Leon M. Stock、Michael R. Wasielewski
DOI:10.1021/ja00443a012
日期:1977.1
Organic photochemistry. 63. Photolytic cleavage of remote functional groups in polyfunctional molecules. Photolysis of exo- and endo-benzobicyclo[2.2.2]octen-2-yl chloride