A facile protocol for copper‐free palladium‐catalyzed Sonogashira coupling in aqueous media
作者:Da‐Young Jung、Soo Youl Park、Seung‐Hoi Kim
DOI:10.1002/bkcs.12432
日期:2022.1
combination of a readily available palladiumcatalyst and an eco-friendly basic aqueous solution of room-temperature ionic liquid, choline hydroxide (ChOH), was used in a facile protocol alternative to the Sonogashiracoupling reaction, alkynylation of aryl halides in the absence of a copper cocatalyst and an external base. The dual nature of ChOH to act as a base and a green solvent played a crucial role in
Intermediate layer composition for three-layer resist process and pattern formation method using the same
申请人:FUJI PHOTO FILM CO., LTD.
公开号:US20030207208A1
公开(公告)日:2003-11-06
An intermediate layer composition for a three-layer resist process comprising (A) an octakis(silsesquioxane) skeleton-containing polymer obtained by hydrosilylation polymerization of a compound represented by formula (I) defined in the specification with bis(substituted ethynyl) compound in the presence of a platinum-containing catalyst.