Acid-catalyzed three-component addition of carbonyl compounds with 1,2,3-triazoles and indoles
作者:Qiaoyan Xing、Chunlan Zhou、Shuxin Jiang、Shanping Chen、Guo-Jun Deng
DOI:10.1039/d1ob01451j
日期:——
A facile and efficient acid-catalyzed three-component reaction of indoles, 1-tosyl-1,2,3-triazoles and carbonylcompounds has been developed. The use of TsOH with a small amount of water significantly promoted the reaction yield. This method provided a general and one-pot approach for the synthesis of structurally diverse C3-alkylated indole derivatives. The alkylation exclusively occurred at the N2
Brønsted Acid-Catalyzed Nucleophilic Substitution of Alcohols
作者:Roberto Sanz、Alberto Martínez、Delia Miguel、Julia M. Álvarez-Gutiérrez、Félix Rodríguez
DOI:10.1002/adsc.200606183
日期:2006.9
Brønsted acids such as p-toluenesulfonic acid monohydrate (PTS) or polymer-bound p-toluenesulfonic acid efficiently catalyze the direct nucleophilic substitution of the hydroxygroup of allylic and benzylic alcohols with a large variety of carbon- and heteroatom-centered nucleophiles. Reaction conditions are mild, the process is conducted under an atmosphere of air without the need for dried solvents
Electrophilic Allylations and Benzylations of Indoles in Neutral Aqueous or Alcoholic Solutions
作者:Martin Westermaier、Herbert Mayr
DOI:10.1021/ol0618555
日期:2006.10.1
[reaction: see text] Indoles are allylated and benzylated in moderate to quantitative yield when stirred with allyl and benzyl halides in 80% aqueous acetone in the presence of NH(4)HCO(3) at room temperature.