吲哚-2-羧酸衍生物对钯的钯催化环化反应:通过Ar–I反应性或CH–H官能化合成Indolo [2,3 - c ] pyrane -1- one
摘要:
提出了两种方法,一种涉及Ar–I反应性,另一种通过CH–H官能化,用于通过相应的烯键形成吲哚[2,3 - c ]吡喃-1-酮。描述了通过Pd催化的烯丙基与3-碘-1-烷基吲哚-2-羧酸的区域选择性环化制备吲哚并[2,3 - c ]吡喃-1-酮衍生物的高效方法。该方法对于广泛范围的丙二烯是相当普遍的,它们以良好或优异的产率提供了各自的吲哚并[2,3 - c ]吡喃-1-酮。此外,Pd(II)催化吲哚-2-羧酸衍生物与丙二烯的氧化偶合,可通过直接的C–H功能化得到相应的吲哚[2,3- c]。已经开发了中等至良好产率的]吡喃-1-酮。
Synthesis of Functionalized 1,3-Butadienes via Pd-Catalyzed Cross-Couplings of Substituted Allenic Esters in Water at Room Temperature
作者:Daniel J. Lippincott、Roscoe T. H. Linstadt、Michael R. Maser、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1021/acs.orglett.8b01377
日期:2018.8.17
responsible, mild method for the synthesis of functionalized 1,3-butadienes is presented. It utilizes allenic esters of varying substitution patterns, as well as a wide range of boron-based nucleophiles under palladium catalysis, generating sp–sp2, sp2–sp2, and sp2–sp3 bonds. Functional group tolerance measured via robustness screening, along with roomtemperature and aqueous reaction conditions highlight
Enantioselective Palladium‐Catalyzed Hydrophosphinylation of Allenes with Phosphine Oxides: Access to Chiral Allylic Phosphine Oxides
作者:Zhiping Yang、Jun (Joelle) Wang
DOI:10.1002/anie.202112285
日期:2021.12.20
A highly efficient, versatile and atom-economic protocol to chiral allylic phosphineoxides is demonstrated via palladium-catalyzed asymmetric hydrophosphinylation of allenes with phosphineoxides. A family of chiral allylic phosphineoxides with a diverse range of functional groups were obtained in high yield (up to 99 %) and enantioselectivities (up to 99 % ee).
[EN] ALKYNE COMPOUNDS FOR TREATMENT OF IMMUNE AND INFLAMMATORY DISORDERS<br/>[FR] COMPOSÉS ALCYNE POUR LE TRAITEMENT DE TROUBLES IMMUNITAIRES ET INFLAMMATOIRES
申请人:ACHILLION PHARMACEUTICALS INC
公开号:WO2017035415A1
公开(公告)日:2017-03-02
Compounds, methods of use, and processes for making inhibitors of complement Factor D are provided comprising Formula I, I" and I'" or a pharmaceutically acceptable salt or composition thereof. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade. The inhibitors of Factor D described herein reduce the excessive activation of complement.
[EN] ARYL, HETEROARYL, AND HETEROCYCLIC COMPOUNDS FOR TREATMENT OF IMMUNE AND INFLAMMATORY DISORDERS<br/>[FR] COMPOSÉS ARYLE, HÉTÉROARYLE, ET HÉTÉROCYCLIQUES POUR LE TRAITEMENT DE TROUBLES IMMUNITAIRES ET INFLAMMATOIRES
申请人:ACHILLION PHARMACEUTICALS INC
公开号:WO2017035409A1
公开(公告)日:2017-03-02
Compounds, methods of use, and processes for making inhibitors of complement Factor D are provided comprising Formula I, I" and I'" or a pharmaceutically acceptable salt or composition thereof. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade. The inhibitors of Factor D described herein reduces the excessive activation of complement.
with a proximal alkoxy group is reported. This reaction, in the presence of a [Rh(cycloocta‐1,5‐diene)Cl]2/propane‐1,3‐diylbis(diphenylphosphane) system under a CO atmosphere, constitutes a powerful tool for selectively accessing carbo‐ and heterobicyclo[5.3.0] frameworks featuring an enol ether moiety. Through this procedure, a straightforward access to guaiane skeletons with a tertiary hydroxy group