[EN] MODULATORS OF ESTROGEN RECEPTOR PROTEOLYSIS AND ASSOCIATED METHODS OF USE [FR] MODULATEURS DU RÉCEPTEUR DES ŒSTROGÈNES DE PROTÉOLYSE ET PROCÉDÉS D'UTILISATION ASSOCIÉS
A route to benzylic arylsulfoxides from β-ketosulfoxides
作者:Meng-Yang Chang、Yu-Chieh Cheng、Chieh-Kai Chan
DOI:10.1016/j.tet.2016.05.038
日期:2016.7
The K2CO3-mediated benzylation of β-ketosulfoxides 4 with 2.0 equiv of benzylic halides 5 affords benzylic arylsulfoxides 6 in moderate yields along with trace amounts of chalcones 7. The products 6 are assumed to form in situ intermediates of sulfenate anions from β-ketosulfoxides which are commonly involved in carbon–sulfur bond formation. A plausible mechanism has been proposed.
用2当量的苄基卤化物5进行的K 2 CO 3介导的β-酮亚砜4的苄基化反应可中等产率地得到苄基芳基亚砜6以及痕量的查耳酮7。假定产物6原位形成了β-酮亚砜中的亚硫酸根阴离子的中间体,这些中间体通常参与碳-硫键的形成。已经提出了一种合理的机制。
An aryl thiol–vinyl azide coupling reaction and a thiol–vinyl azide coupling/cyclization cascade: efficient synthesis of β-ketosulfides and arene-fused 5-methylene-2-pyrrolidinone derivatives
The addition reaction of thiol to vinyl azide has been extensively studied. Variously substituted aryl thiols are all viable for this coupling process. The scope of the other partner is successfully expanded from α-aryl vinyl azide to α-alkyl vinyl azide. A thiol–vinyl azide coupling/cyclization cascade is realized with substituted aryl vinyl azides carrying a 2-methoxycarbonyl group. The value of
A facile synthesis of 3-aryl-substituted-benzothiophenes via a lewis acid mediated cyclization of 2-arylthio-acetophenones
作者:Seongkon Kim、Jane Yang、Frank DiNinno
DOI:10.1016/s0040-4039(99)00392-5
日期:1999.4
The boron trifluoride-etherate mediated cyclization of 2-arylthio-ketones 1a-h at ambienttemperature gave 3-aryl-substituted benzothiophenes 2a-h in excellent yield. None of the rearranged 2-aryl-substituted benzothiophenes were observed.
Syntheses of 2-Aroyl 3-Aryl Benzofuran and Benzothiophenes
作者:Pailla Umareddy、Veera Reddy Arava
DOI:10.1002/jhet.3287
日期:2018.11
the synthesis of 6‐methoxy 2‐aroyl 3‐aryl benzofuran and benzothiophenes from 2‐(3‐Methoxy‐phenoxy or thioxy)‐1‐phenyl‐ethanone and substituted benzoyl chloride through Friedel–Crafts benzoylation and cyclization reaction. The method accepts a variety of functional groups on the benzoyl chloride.
Facile synthesis of 3-aryl benzofurans, 3-aryl benzothiophenes, 2-aryl indoles and their dimers
作者:Pailla Umareddy、Veera Reddy Arava
DOI:10.1080/00397911.2019.1611856
日期:2019.9.2
Abstract The preparation of 3-aryl benzofuran and benzothiophenes and their dimers at 2-position and, 2-aryl indoles and their 3-position dimers preparation is described. Graphical Abstract