Convenient One‐Pot Synthesis of Vinyl Ethers from Phenyl 2‐Hydroxyalkyl Selenides
作者:Shou‐Ri Sheng、Hai‐Rong Luo、Wu‐Kang Sun、Xiao‐Ling Liu、Qin Xin、Qiu‐Ying Wang
DOI:10.1080/00397910500296901
日期:2005.11
Abstract Vinylethers were prepared with good yields in a one‐pot, two‐step transformation by O‐alkylation reaction of phenyl 2‐hydroxyalkyl selenides with primary or secondary organic halides followed by oxidation elimination with 30% hydrogen peroxide.
作者:Yulian Duan、Tao Wang、Qingxiao Xie、Xiaobo Yu、Weijie Guo、Jianhui Wang、Guiyan Liu
DOI:10.1039/c6dt03899a
日期:——
metathesis catalysts containing an N-heterocyclic carbene (NHC) and a carbonylgroup have been developed and their catalytic activities for olefin metathesis reactions were investigated. The X-ray structure of the [(H2IMes)(Cl)2Ru]C(H)CH2[p-F(C6H3)NC(CF3)(C(O)OCH2CH3)] complex shows that the carbonyl oxygen of the ester and the imine nitrogen are both coordinated to the Ru metal to give an octahedral
已开发出一系列含有N-杂环卡宾(NHC)和羰基的氮螯合钌卡宾复分解催化剂,并研究了它们对烯烃复分解反应的催化活性。[(H 2 IMes)(Cl)2 Ru] C(H)CH 2 [ p -F(C 6 H 3)NC(CF 3)(C(O)OCH 2 CH 3)]配合物表明,酯的羰基氧和亚胺氮都与Ru金属配位,得到八面体结构。测试了这些钌卡宾配合物对烯烃复分解反应的催化活性。一些带有吸电子基团的配合物具有较高的引发速率。这些复合物对于闭环复分解和交叉复分解均显示出优异的性能。
Carbonyl methylenation using a titanium-aluminum (Tebbe) complex
作者:Stanley H. Pine、Robert J. Pettit、Gregory D. Geib、Susana G. Cruz、Claudio H. Gallego、Tomas Tijerina、Randall D. Pine
DOI:10.1021/jo00208a013
日期:1985.4
CONTROL OF MOLECULAR WEIGHT AND END GROUP FUNCTIONALITY OF POLYMERS
申请人:COMMONWEALTH SCIENTIFIC AND INDUSTRIAL
RESEARCH ORGANISATION
公开号:EP0333758B1
公开(公告)日:1995-11-02
Preparation, characterization and nonlinear optical properties of colloidal gallium arsenide nanocrystals
作者:Z LIU、C LIU、Q LI、Z CHEN、Q GONG
DOI:10.1016/s1001-0521(06)60026-0
日期:2006.4
GaAs nanocrystals were prepared via a simple mechanical ball milling technique. The prepared GaAs nanocrystals have high purity and could form colloidal ethanol suspension without any surfactant additives. The colloidal GaAs nanocrystal suspension displayed excellent two-photon absorption property over the visible and near-infrared region from 490 nm to 1064 run, which enables it to become a promising broadband optical limiting material.