[EN] TRANS-CYCLOHEPTENES AND HETERO-TRANS-CYCLOHEPTENES FOR BIOORTHOGONAL COUPLING<br/>[FR] TRANS-CYCLOHEPTÈNES ET HÉTÉRO-TRANS-CYCLOHEPTÈNES POUR COUPLAGE BIOORTHOGONAL
申请人:UNIV DELAWARE
公开号:WO2016164565A1
公开(公告)日:2016-10-13
A substituted trans-cycloheptene according to formula (I); wherein : a) Z and L are each selected from the group consisting of SiR1R2, CH2, CHOH, and CHR2; R1 is phenyl or CH3; R2 is phenyl, CH3, (CH2)nCN, or (CH2)nOH, wherein n is an integer from 1 to 5; Ra and Rb are each individually selected from the group consisting of H, OH, and CH3; and Z and L are not both SiR1R2; or b) Z is BocN, L is CH2, Ra is H, and Rb is H; or c) Z is C=0, L is CH2, Ra is H, and Rb is H.
Recyclable Transition Metal Catalysis using Bipyridine‐Functionalized SBA‐15 by Co‐condensation of Methallylsilane with TEOS
作者:Ye Ri Han、Jae Soon Kim、Woo‐Jin Park、Chang‐Hee Lee、Jinwoo Cheon、Chul‐Ho Jun
DOI:10.1002/asia.202001152
日期:2021.2
Well‐defined recyclable Pd‐ and Rh‐bipyridyl group‐impregnated SBA‐15 catalysts were prepared for C−C bond coupling reaction and selective hydrogenation reactions, respectively. These SBA‐15 derived ligands for the catalysts were prepared by direct and indirect co‐condensation method using bipyridyl‐linked methallylsilane. This indirect method, involving methoxysilane generated from methallylsilane shows
present a highly efficient method for the synthesis of functionalized silsesquioxanes mediated by scandium(III) triflate, which opens up the possibility of introducing a wide variety of functional groups into this class of organosilicon compounds under mild conditions with excellent yields. We also investigated the differences in the activity of the Lewisacid (Sc(OTf)3) and the hidden Brønsted acid (TfOH)
Surface Modified Inorganic Material and Producing Method Thereof
申请人:Jun Chul-Ho
公开号:US20090270590A1
公开(公告)日:2009-10-29
A surface-modified inorganic material and a preparation method thereof. A surface-modified inorganic material is provided which is obtained by allowing an organosilane compound having allyl or an allyl derivative to react with an inorganic material, particularly solid silica or ITO glass, in the presence of an acid and an organic solvent, to introduce an organic group into the inorganic material even at room temperature, as well as a preparation method thereof. The invention can effectively introduce the organic group into the inorganic material even at room temperature, and thus is very effective in introducing compounds having a thermally sensitive functional group, for example, natural compounds or proteins. It is possible to introduce various organic groups into an inorganic material and to separate and purify organic molecule-bonded organosilane compounds using a silica gel column to effectively bond them to inorganic materials. Accordingly, the invention is very useful in the chemical industry.
SURFACE MODIFIED INORGANIC MATERIAL AND PRODUCING METHOD THEREOF
申请人:Jun Chul-Ho
公开号:US20130060014A1
公开(公告)日:2013-03-07
A surface-modified inorganic material and a preparation method thereof. A surface-modified inorganic material is provided which is obtained by allowing an organosilane compound having allyl or an allyl derivative to react with an inorganic material, particularly solid silica or ITO glass, in the presence of an acid and an organic solvent, to introduce an organic group into the inorganic material even at room temperature, as well as a preparation method thereof. The invention can effectively introduce the organic group into the inorganic material even at room temperature, and thus is very effective in introducing compounds having a thermally sensitive functional group, for example, natural compounds or proteins. It is possible to introduce various organic groups into an inorganic material and to separate and purify organic molecule-bonded organosilane compounds using a silica gel column to effectively bond them to inorganic materials.