Azobenzene-tethered bis(trityl alcohol) as a photoswitchable cooperative acid catalyst for Morita-Baylis-Hillman reactions
Incorporation of an azobenzene core into tethered bis(trityl alcohol) allows the photoswitchable arrangement of the two trityl alcohol units through photoisomerization of azobenzene. The differently arranged trityl alcohol units change their cooperative function to reflect the positional relationships, and thus, the activity as a cooperative acid can be controlled by light stimuli (see figure). Copyright
Imahori, Tatsushi,Yamaguchi, Ryo,Kurihara, Seiji
supporting information; experimental part
p. 10802 - 10807
(2012/09/22)
New Hosts Bearing Two Triphenylcarbinol Groups and Crystal Structures of Their Acetone Inclusion Compounds
New hosts, m- and p-bis(diphenylhydroxymethyl)benzene and 2,2'-bis(diphenylhydroxymethyl)-1,1'-diphenyl, were found to exhibit high and selective inclusion tendencies toward a wide variety of guest compounds.Crystal structures of two representative acetone complexes were determined.
Toda, Fumio,Kai, Akira,Toyotaka, Ritsuji,Yip, Wai-Hing,Mak, Thomas C. W.
p. 1921 - 1924
(2007/10/02)
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