AbstractAn original and convenient domino route to natural nostoclides I and II has been developed using a two‐step sequence consisting of a copper‐catalyzed tandem reaction associated with Suzuki cross‐coupling. The methodology employed for this total synthesis appeared to be an interesting and sufficiently flexible tool to allow the synthesis of numerous analogues of these nostoclides.magnified image
Silver-Catalyzed Nitrogenation of Alkynes: A Direct Approach to Nitriles through CC Bond Cleavage
作者:Tao Shen、Teng Wang、Chong Qin、Ning Jiao
DOI:10.1002/anie.201300193
日期:2013.6.24
Three in one blow! A novel direct transformation of alkynes into nitriles by a silver‐catalyzed nitrogenation reaction through CCbondcleavage has been developed. This research provides both a new application for alkynes in organic synthesis, and valuable mechanistic insights into nitrogenation chemistry.
Silver‐Catalyzed Oxyphosphorylation of Unactivated Alkynes
作者:Binbin Liu、Qingmin Song、Zhaohong Liu、Zikun Wang
DOI:10.1002/adsc.202100226
日期:2021.7
Here, we describe an application of hydroazidation in the instant activation of alkynes for achieving the oxyphosphorylation of unactivated alkynes with diarylphosphinoyl radicals under mild reaction conditions. This reaction provides a method for accessing β-ketophosphine oxides and phosphorus-containing pyrroles.
Oxidative Difunctionalization of Alkenyl MIDA Boronates: A Versatile Platform for Halogenated and Trifluoromethylated α-Boryl Ketones
作者:Wen-Xin Lv、Yao-Fu Zeng、Qingjiang Li、Yunyun Chen、Dong-Hang Tan、Ling Yang、Honggen Wang
DOI:10.1002/anie.201604898
日期:2016.8.16
The synthesis of halogenated and trifluoromethylated α‐boryl ketones via a one‐pot oxidative difunctionalization of alkenyl MIDA boronates is reported. These novel densely functionalized organoborons bearing synthetically and functionally valuable carbonyl, halogen/CF3 and boronate moieties within the same molecule are synthetically challenging for the chemist, but have great synthetic potential, as
Synthetic Strategy for Aryl(alkynyl)phosphinates by a Three-Component Coupling Reaction Involving Arynes, Phosphites, and Alkynes
作者:Su Hyun Ji、Soomin Kim、Ghilsoo Nam、Duck-Hyung Lee、Seo-Jung Han
DOI:10.1021/acs.orglett.2c03231
日期:2022.11.18
straightforward method for the synthesis of aryl(alkynyl)phosphinates was developed via a three-component coupling reaction involving arynes, phosphites, and alkynes. An array of aryl(alkynyl)phosphinates were produced from both aryl and aliphatic group-substituted acetylenes. This operationally simple reaction is tolerant to many functional groups, affording various aryl(alkynyl)phosphinates in moderate to
The atomtransferradicaladdition (ATRA) of bromodifluoroacetamides to arylalkynes and terminal alkenes was conducted using von Wangelin's Co catalyst system (CoBr2/1,2-bis(diphenylphosphino)benzene/Zn) in acetone/H2O at 30 °C to afford the corresponding functionalized difluoroacetamides in 33–89% yields. Moreover, the Co catalyst was successfully applied to the tandem addition/cyclization of 1,6-diene
溴二氟乙酰胺与芳基炔烃和末端烯烃的原子转移自由基加成 (ATRA) 使用 von Wangelin 的 Co 催化剂体系 (CoBr 2 /1,2-双(二苯基膦基)苯/Zn) 在丙酮/H 2 O 中在 30 °C 下进行以 33-89% 的收率提供相应的官能化二氟乙酰胺。此外,Co催化剂成功应用于1,6-二烯和-烯炔底物的串联加成/环化反应以及N-烯丙基和N-炔丙基溴二氟乙酰胺的分子内ATRA,显着扩大了自由基二氟烷基化的范围。