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pro vyhledávání: '"Toshiaki Makino"'
Autor:
Toshiaki Makino, Shinji Toyota
Publikováno v:
Bulletin of the Chemical Society of Japan. 78:917-928
Some sterically congested di(9-anthryl)ethynes with substituted phenyl groups (4-Me, 4-iPr, 4-tBu, 3-iPr, 3,5-iPr2) at the 1-positions were synthesized by the Stille coupling of the corresponding t...
Publikováno v:
Bulletin of the Chemical Society of Japan. 73:2591-2597
A series of (1,4-dimethyl-9-triptycyl)(1-halo-9-triptycyl)ethynes were synthesized to examine the effect of halogen substituents on the rotational isomerism about C(sp)-C(sp3) bonds. The kinetic and thermodynamic data of the isomerization between the