61109-78-2Relevant academic research and scientific papers
PHOTOCYCLOREVERSION-REACTION OF A CAGE MOLECULE AND RELATED CYCLOBUTANES WITH CATIONIC SENSITIZERS.
Okada, Keiji,Hisamitsu, Kunio,Mukai, Toshio
, p. 1251 - 1254 (1981)
Irradiation of 1, 2, or 3 in acetonitrile in the presence of cationic sensitizer 7 or 8 afforded the cycloreversion product 4, 5 or 6, respectively.A wide range in quantum yields were found and these were dependent on the substrates and sensitizers.
Cycloreversion Reaction of Cage Compounds Initiated by Aminium Cation Radical Salts
Hasegawa, Eietsu,Mukai, Toshio
, p. 3391 - 3392 (1985)
Treating cage compounds 1 with triarylaminium cation radical salts, 3 and 4, resulted in the effective conversion of 1 to dienes 2.The cation radical isomerization induced by electron-transfer from 1 to aminium salt was suggested by the effect of substitu
ELECTRODE-CATALYSED CYCLOREVERSION REACTION OF PHENYLATED BIS-HOMOCUBANES
Takahashi, Yasutake,Sato, Katsuhiro,Miyashi, Tsutomu,Mukai, Toshio
, p. 1553 - 1554 (1984)
The constant potential anodic oxidation reaction of phenylated bis-homocubanes involved the cycloreversion to give the dienes via a radical chain mechanism.
Quantum amplified isomerization: A new concept for polymeric optical materials
Gillmore,Neiser,McManus,Roh,Dombrowski,Brown,Dinnocenzo,Farid,Robello
, p. 7684 - 7694 (2008/02/01)
The preparation and evaluation of a new class of photoresponsive polymers are described on the basis of a process called quantum amplified isomerization (QAI). The QAI process utilizes photoinitiated, cation radical isomerization chemistry in a polymeric medium. Two classes of materials are described: one where the QAI reactant is molecularly doped in the polymer matrix and another where the reactant is part of a functionalized polymer. Quantum yield experiments demonstrate that the isomerization reaction can proceed by a chain process with modest efficiencies. Photochemical conversion experiments show that high extents of conversion of the QAI reactants are possible. The rate and extent of conversion are strongly correlated to the glass transition temperature of the polymer. For molecularly doped polymers, hypotheses to explain the high conversions based on diffusion or phase separation of the reactants were tested and excluded. Models are discussed to rationalize experimental factors that affect the quantum yields and the photochemical conversions.
Photosensitized Cycloreversion Reactions of Arylated Cage Compounds in Nonpolar Solvents. Highly Efficient Adiabatic Exciplex Isomerization
Hasegawa, Eietsu,Okada, Keiji,Ikeda, Hiroshi,Yamashita, Yoshiro,Mukai, Toshio
, p. 2170 - 2178 (2007/10/02)
Photosensitized cycloreversion reactions of arylated cage compounds 1 to dienes 2 using several cyanoaromatics as sensitizers are reported.In acetonitrile, 1a isomerized to 2a via an efficient cation-radical chain process.In contrast, the isomerizat
