Polymers based on cinnamic acid as a bottom antireflective coating for 157 NM photolithography
申请人:Hohle Christoph
公开号:US20050170283A1
公开(公告)日:2005-08-04
A bottom antireflective coating for photolithography at 157 nm or less, where the bottom antireflective coating includes a crosslinkable polymer which contains cinnamic acid derivatives.
US7405028B2
申请人:——
公开号:US7405028B2
公开(公告)日:2008-07-29
Metal‐Free Direct C−H Cyanation of Alkenes
作者:Xi Wang、Armido Studer
DOI:10.1002/anie.201807303
日期:2018.9.3
A metal‐free and direct alkene C−H cyanation is described. Directing groups are not required and the mechanism involves electrophilic activation of the alkene by a cyano iodine(III) species generated in situ from a [bis(trifluoroacetoxy)iodo]arene and trimethylsilyl cyanide as the cyanide source. This C−H functionalization can be conducted on gram scale, and for noncyclic 1,1‐ and 1,2‐disubstuted alkenes