Palladium-Catalyzed C–H Activation and Cyclization of Anilides with 2-Iodoacetates and 2-Iodobenzoates: An Efficient Method toward Oxindoles and Phenanthridones
Abstract A concise approach to the synthesis of oxindoles and phenanthridones from anilides is described. In the presence of catalytic amount of Pd(OAc)2, 2-iodoacetates and 2-iodobenzoates can be used to functionalize ortho C–H bond of anilides, which subsequently undergo intramolecular cyclization to give the products. A possible reaction mechanism that involves a PdII/PdIV catalytic cycle is proposed
摘要 描述了一种由苯胺合成羟吲哚和菲啶酮的简洁方法。在存在催化量的Pd(OAc)2的情况下,可以使用2-碘乙酸酯和2-碘苯甲酸酯官能化苯甲酸酯的邻位C-H键,随后进行分子内环化以生成产物。在详细的机理研究的支持下,提出了可能的涉及Pd II / Pd IV催化循环的反应机理。 描述了一种由苯胺合成羟吲哚和菲啶酮的简洁方法。在存在催化量的Pd(OAc)2的情况下,可以使用2-碘乙酸酯和2-碘苯甲酸酯官能化苯甲酸酯的邻位C-H键,随后进行分子内环化以生成产物。在详细的机理研究的支持下,提出了可能的涉及Pd II / Pd IV催化循环的反应机理。
[EN] ISOCHROMENE DERIVATIVES AS PHOSPHOINOSITIDE 3-KINASES INHIBITORS<br/>[FR] DÉRIVÉS D'ISOCHROMÈNE UTILES EN TANT QU'INHIBITEURS DES PHOSPHOINOSITIDE 3-KINASES
申请人:CHIESI FARMA SPA
公开号:WO2015091685A1
公开(公告)日:2015-06-25
The invention relates to compounds inhibiting phosphoinositide 3-kinases (PI3K), to pharmaceutical compositions comprising them and therapeutic use thereofin the treatment of disorders associated with PI3K enzymes.
ISOCHROMENE DERIVATIVES AS PHOSHOINOSITIDE 3-KINASES INHIBITORS
申请人:CHIESI FARMACEUTICI S.p.A.
公开号:US20150166549A1
公开(公告)日:2015-06-18
Compounds of formula (I) described herein are useful for inhibiting phosphoinositide 3-kinases (PI3K) and the treatment of disorders associated with PI3K enzymes.
Hypervalent Iodine-Mediated Intramolecular <i>trans</i>-Aminocarboxylation and Oxoaminocarboxylation of Alkynes: Divergent Cascade Annulations of Isocoumarins under Metal-Free Conditions
作者:Xiang Zhang、Wenjuan Hou、Daisy Zhang-Negrerie、Kang Zhao、Yunfei Du
DOI:10.1021/acs.orglett.5b02611
日期:2015.11.6
An exclusive trans-aminocarboxylation and oxoaminocarboxylation of diarylalkynes were realized through hypervalent iodine-mediated cascadeannulationsundermetal-freeconditions, leading to divergent assembly of fused or spiro polycyclic heterocycles with a dosage of the hypervalent iodine oxidant. The mechanisms for the formation of both products are proposed.
Differentiation and functionalization of remote C–H bonds in adjacent positions
作者:Hang Shi、Yi Lu、Jiang Weng、Katherine L. Bay、Xiangyang Chen、Keita Tanaka、Pritha Verma、Kendall N. Houk、Jin-Quan Yu
DOI:10.1038/s41557-020-0424-5
日期:2020.4
two positions. Herein, we report the design of a catalytic system leveraging a remote directing template and a transient norbornene mediator to selectively activate a previously inaccessible remoteC-H bond that is one bond further away. The generality of this approach has been demonstrated with a range of heterocycles, including a complex anti-leukaemia agent and hydrocinnamic acid substrates.