cocatalysts and W(CO)6−hν/CCl4 catalysts. The UV−vis absorption band edge wavelengths of poly(t-Bu2CzPr) and poly(p-CzPA) were longer than those of the corresponding polymers substituted by methyl group at the main chain, poly(t-Bu2CzBu) and poly(p-CzPPr), respectively. The band edge wavelengths of phenylene-spacer-containing polymers, poly(p-CzPA) and poly(p-CzPPr), were longer than those of meth
Composition for forming organic film, substrate for manufacturing semiconductor apparatus, method for forming organic film, patterning process, and polymer
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US11181821B2
公开(公告)日:2021-11-23
The invention provides a composition for forming an organic film, which generates no by-product even under such a film formation condition in an inert gas to prevent substrate corrosion, which is capable of forming an organic film not only excellent in properties of filling and planarizing a pattern formed on a substrate but also favorable for dry etching resistance during substrate processing, and further which causes no fluctuation in film thickness of the film due to thermal decomposition even when a CVD hard mask is formed on the organic film. The composition for forming an organic film includes (A) a polymer having a repeating unit shown by the following general formula (1) and (B) an organic solvent.
B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>-mediated direct intramolecular C7-alkenylation of <i>N</i>-propargylindoles
作者:Jie Cui、Tongdao Wang
DOI:10.1039/d3cc02599c
日期:——
B(C6F5)3-mediated direct C7-alkenylation of N-propargylindoles without directing groups was developed. This reaction proceeds via the π-activation of the alkynyl group with B(C6F5)3/Friedel–Crafts alkenylation/proton transfer reaction sequence. Interestingly, C7-alkenylation products could further convert into the fused indoles by deprotonation and finally polyaromatic N-heterocycles by the hydride
开发了B(C 6 F 5 ) 3介导的无导向基团的N-炔丙基吲哚的直接C7-烯基化。该反应通过B(C 6 F 5 ) 3 /Friedel-Crafts 烯基化/质子转移反应序列对炔基进行 π 激活来进行。有趣的是,C7-烯基化产物可以通过去质子化进一步转化为稠合吲哚,最后通过氢化物提取转化为多芳香族N-杂环。