نتایج جستجو برای: cyclopentanone

تعداد نتایج: 199  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2006
Rakesh Kumar Mahajan T P S Walia Sumanjit T S Lobana

A selective and sensitive stripping voltammetric method for the determination of trace amounts of copper(II) with cyclopentanone thiosemicarbazone (CPTSC) is presented. The method is based on the adsorptive accumulation of the resulting copper-CPTSC complex on a hanging mercury drop electrode, followed by the stripping voltammetric measurements at the reduction current of the adsorbed complex a...

Journal: :Organic & biomolecular chemistry 2011
Hiroshi Saitoh Takayuki Chida Kenichiro Takagi Kyohei Horie Yoshiyuki Sawai Yuko Nakamura Yoshifumi Harada Kazuya Takenouchi Atsushi Kittaka

In order to obtain vitamin D derivatives, which have strong activity for enhancing bone growth, we designed vitamin D derivatives with various substitutions at the C-2 position. Novel 2 α-substituted vitamin D derivatives were synthesized starting from d-glucose as a chiral template of the A-ring with a CD-ring bromoolefin unit using the Trost coupling method. We evaluated these compounds by tw...

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