accessible sodiumformate as C1-source and K2S2O8 as reagent, a set of vinylsulfone substrates could be efficiently hydrocarboxylated in aqueous medium without any additional catalyst or reagent; and the concept could be also applied for direct hydroacylations, hydroalkylations and hydrophosphorylations. The control experiments clearly indicated that the reaction proceeds via radical mechanism without
我们报告了一种可见光介导的乙烯砜衍生物自由基加氢羧化方法。使用廉价易得的甲酸钠作为C1源,K 2 S 2 O 8作为试剂,一组乙烯基砜底物可以在水介质中有效地加氢羧化,无需任何额外的催化剂或试剂;该概念也可应用于直接加氢酰化、加氢烷基化和加氢磷酸化。对照实验清楚地表明该反应通过自由基机制进行,没有生成电子供体-受体(EDA)复合物;支持K 2 S 2 O 8原位引发的工作模型形成CO 2自由基阴离子。
RESIST UNDERLAYER FILM-FORMING COMPOSITION AND METHOD FOR FORMING RESIST PATTERN USING THE SAME
申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US20170045820A1
公开(公告)日:2017-02-16
A composition for forming a resist underlayer film which make possible to form a desired high-adhesion resist pattern. A resist underlayer film-forming composition for lithography containing a polymer having the following structure Formula (1) or (2) at a terminal of a polymer chain, crosslinker, compound promoting crosslinking reaction, and organic solvent.
(wherein R
1
is a C
1-6
alkyl group optionally having a substituent, phenyl group, pyridyl group, halogeno group, or hydroxy group, R
2
is a hydrogen atom, a C
1-6
alkyl group, hydroxy group, halogeno group, or ester group of —C(═O)O—X wherein X is a C
1-6
alkyl group optionally having a substituent, R
3
is a hydrogen atom, a C
1-6
alkyl group, hydroxy group, or halogeno group, R
4
is a direct bond or divalent C
1-8
organic group, R
5
is a divalent C
1-8
organic group, A is an aromatic ring or heteroaromatic ring, t is 0 or 1, and u is 1 or 2.)