Silver‐Catalyzed Decarboxylative Allylation of Difluoroarylacetic Acids with Allyl Sulfones in Water
作者:Xiang Li、Ruihong Zhang、Xiaofei Zhang、Peiyuan Zhu、Tuanli Yao
DOI:10.1002/asia.202000059
日期:2020.4
A practical silver-catalyzed decarboxylative allylation of α,α-difluoroarylacetic acids with allyl sulfones is described, which provides a variety of β,β -difluorinated alkenes in good yields. Notably, the reaction proceeds smoothly in water with good functional group tolerance. The practicality and synthetic value of this process was demonstrated by scaled-up experiment and elaboration of the products
ONIUM SALT COMPOUND, CHEMICALLY AMPLIFIED RESIST COMPOSITION AND PATTERNING PROCESS
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20210179554A1
公开(公告)日:2021-06-17
An onium salt having formula (1) serving as an acid diffusion inhibitor and a chemically amplified resist composition comprising the acid diffusion inhibitor are provided. When processed by lithography, the resist composition exhibits a high sensitivity, and excellent lithography performance factors such as CDU and LWR.
Synthesis of 2-Fluoroalkylated Oxazoles from β-Monosubstituted Enamines <i>via</i> Fluoroacyloxylation and Cyclization Mediated by Fluoroalkyl-Containing Hypervalent Iodine(III) Species Generated <i>In Situ</i>
作者:Zhifang Yang、Fengxia Sun、Yadong Li、Kaiyue Yang、Jianing Zhang、Lingzhi Xu、Hui Zhao、Yunfei Du
DOI:10.1021/acs.joc.3c01032
日期:2023.8.4
A metal-free synthesis of a series of fluoroalkyl-containing oxazoles from β-monosubstituted enamines was developed. This fluoroacyloxylation/cyclization cascade process was mediated by fluoroalkyl-containing hypervalent iodine(III) species formed in situ from the reaction of phenyliodine(III) diacetate (PIDA) and RCF2CO2H (R = H, Cl, Br, F, CF3, CH3, Ph, SAr, OAr).
开发了由β-单取代烯胺无金属合成一系列含氟烷基恶唑的方法。这种氟酰氧基化/环化级联过程是由二乙酸苯碘(III) (PIDA) 和 RCF 2 CO 2 H (R = H, Cl, Br, F, CF 3、CH 3、Ph、SAr、OAr)。
Bi-functional complexes and methods for making and using such complexes
申请人:Gouliaev Alex Haahr
公开号:US11225655B2
公开(公告)日:2022-01-18
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.