Palladium-catalyzed bisthiolation of terminal alkynes for the assembly of diverse (<i>Z</i>)-1,2-bis(arylthio)alkene derivatives
作者:Yin-Long Lai、Shaoxi Yan、Dan He、Li-Zhen Zhou、Zi-Shen Chen、Yu-Long Du、Jianxiao Li
DOI:10.1039/d1ra05773a
日期:——
An efficient and straightforward palladium-catalyzed three-component cascade bisthiolation of terminalalkynes and arylhydrazines with sodium thiosulfate (Na2S2O3) as the sulfur source for the assembly of functionalized (Z)-1,2-bis(arylthio)alkene derivatives is described. Using 0.5 mol% IPr–Pd–Im–Cl2 as the catalyst, a wide range of terminalalkynes and arylhydrazines are well tolerated, thus producing
以硫代硫酸钠 (Na 2 S 2 O 3 ) 作为硫源组装官能化 ( Z )-1,2-双(芳硫基)烯烃的高效且直接的钯催化三组分级联双硫醇末端炔烃和芳基肼衍生品进行了描述。使用 0.5 mol% IPr–Pd–Im–Cl 2作为催化剂,可以很好地耐受多种末端炔烃和芳基肼,从而以良好的收率生产所需的产物,具有良好的官能团耐受性和优异的区域选择性。此外,该协议可以很容易地扩大规模,显示出在有机合成和材料科学中的潜在应用。
Dihydrobenzoindazoles
申请人:Timmers Cornelis Marius
公开号:US20110028451A1
公开(公告)日:2011-02-03
The invention relates to benzoindazole derivatives according to general Formula I
or a pharmaceutically acceptable salt thereof. The compounds can be used for the treatment of infertility.
PYRAZOLE COMPOUNDS AS MODULATORS OF FSHR AND USES THEREOF
申请人:YU Henry
公开号:US20160152626A1
公开(公告)日:2016-06-02
The present invention relates to pyrazole compounds, and pharmaceutically acceptable compositions thereof, useful as positive allosteric modulators of follicle stimulating hormone receptor (FSHR).
<scp>Palladium‐Catalyzed</scp> Denitrogenative Self‐carbonylation of Arylhydrazine Using <scp>CO</scp> and <scp>O<sub>2</sub></scp> as an Ideal Oxidant<sup>†</sup>
作者:Yuvraj A. Kolekar、Bhalchandra M. Bhanage
DOI:10.1002/cjoc.202300310
日期:2023.12
of arylhydrazine with CO and molecular oxygen as an oxidant to afford symmetrical biaryl ketones viaC—N bond activation has been developed. In this approach, arylhydrazine hydrochlorides are used as a green arylating agent which releases nitrogen and water as byproducts. This developed protocol significantly restricts the formation of aryl iodide and homo-coupled azobenzene products even under favorable
开发了一种有效的 Pd/Cu 催化芳基肼与 CO 和分子氧作为氧化剂的氧化自羰基化反应,通过 CN 键活化提供对称联芳基酮。在该方法中,使用芳基肼盐酸盐作为绿色芳基化剂,其释放氮和水作为副产物。即使在有利的条件下,该开发的方案也显着限制了芳基碘化物和均偶偶氮苯产物的形成。在温和条件下以良好的产率合成了具有广泛官能度的对称联芳基酮文库。