ACTINIC-RAY- OR RADIATION-SENSITIVE RESIN COMPOSITION AND METHOD OF FORMING PATTERN USING THE COMPOSITION
申请人:Takahashi Hidenori
公开号:US20120156618A1
公开(公告)日:2012-06-21
According to one embodiment, an actinic-ray- or radiation-sensitive resin composition includes a resin (P) containing not only at least one repeating unit (A) that when exposed to actinic rays or radiation, is decomposed to thereby generate an acid and is expressed by any of general formulae (I) to (III) below but also a repeating unit (B) containing at least an aromatic ring group provided that the repeating unit (B) does not include any of those of general formulae (I) to (III). (The characters used in general formulae (I) to (III) have the meanings mentioned in the description.)
Direct Synthesis of 2,5-Disubstituted Oxazoles through an Iodine-Catalyzed Decarboxylative Domino Reaction
作者:Wei Xu、Ulrich Kloeckner、Boris J. Nachtsheim
DOI:10.1021/jo400753n
日期:2013.6.21
An efficient iodine-catalyzed synthesis of highly substituted oxazoles is presented. Starting from readily available aryl methylketones, β-keto esters, or styrenes, in combination with α-amino acids as amine-containing coupling partners, the corresponding 2-alkyl-5-aryl- substituted oxazoles were obtained in up to 80% yield via a decarboxylative domino reaction.