A silsesquioxane cage structure has a general formula [R
1
SiO
1.5
]
n
, wherein, n is an integer greater than or equal to 4; each R
1
is an amine-functional siloxy group, a quaternary ammonium-functional siloxy group, or a texturizing moiety. At least one R
1
group may optionally be a quaternary ammonium-functional siloxy group. Compositions may be prepared from polymers and the silsesquioxane compounds.
Synthesis of 4-Iodoisoquinolin-1(2<i>H</i>)-ones by a Dirhodium(II)-Catalyzed 1,4-Bisfunctionalization of Isoquinolinium Iodide Salts
作者:Zaixiang Fang、Yi Wang、Yuanhua Wang
DOI:10.1021/acs.orglett.8b03614
日期:2019.1.18
An efficient Rh2(II,II)-catalyzed reaction has been developed under mild conditions. This synthetic method proceeds through iodination/oxidation of readily available isoquinolinium iodide salts under aerobic conditions with good to excellent yields. 4-Iodoisoquinolin-1(2H)-ones are important building blocks for biologically and medicinally important compounds. The developed methodology was applied