Koji Kubono   Ryoichi Tanaka   Yukiyasu Kashiwagi   Keita Tani   Kunihiko Yokoi   
Acta Crystallographica Section E Crystallographic Communications 79(8) 726-729 2023年7月 [査読有り]
In the title compound, [Na(C22H19N4O4S)(CH3CN)]n, the NaI atom adopts a distorted square-pyramidal coordination geometry, formed by one N and one O atom of the qunolinol ...
Koji Kubono   Keita Tani   Yukiyasu Kashiwagi   Fumito Tani   Taisuke Matsumoto   
Acta Crystallographica Section E Crystallographic Communications 78(5) 477-480 2022年5月 [査読有り]
The title compound, C33H33N3, is a carbazolophane, which is a cyclophane composed of two carbazole fragments. It has a planar chirality but crystallizes as a racemate in the space group P-1. The molecule adopts an ...
K. Tani   R. Imafuku   K. Miyanaga   M. E. Masaki   H. Kato   K. Hori   K. Kubono   M. Taneda   T. Harada   K. Goto   F. Tani   T. Mori   
Keita Tani   Shinya Yamamoto   Koji Kubono   Kazushige Hori   Yasuo Tohda   Hiroyuki Takemura   Yosuke Nakamura   Jun Nishimura   Hiroaki Benten   Hideo Ohkita   Shinzaburo Ito   Masahide Yamamoto   
CHEMISTRY LETTERS 36(3) 460-461 2007年3月
Cyanamide- andoxa-bridged [3.n](3,9)carbazolophanes 1n and 2n (n = 4 and 5) were synthesized. X-ray analysis Of 14 and 25 revealed that carbazole rings are taken to be partially overlapped geometry. Electronic spectra of 1n and 2n (n = 4 and 5) sh...
K Hori   M Tamura   K Tani   N Nishiwaki   M Ariga   Y Tohda   
TETRAHEDRON LETTERS 47(18) 3115-3118 2006年5月
Asymmetric epoxidation of (E)-chalcone with alkaline hydrogen peroxide by novel chiral phase-transfer catalysts (chiral PTCs) with quaternary ammonium salts of azacrown ether proceeded in high yield and good enantioselectivity. Remarkably, this re...