An efficient Pd(OAc) 2 -catalyzed directarylation of thiazolo[3,2- b ]-1,2,4-triazoles with sodium sulfinates has been developed. The reaction shows high regioselectivity, good reaction efficiency and excellent functional group compatibility. This approach provides a useful protocol for the preparation of functionalized thiazolo[3,2- b ]-1,2,4-triazole derivatives.
Silver-Catalyzed Direct Regioselective Phosphonation of Thiazolo[3,2-b]-1,2,4-triazoles with Dialkyl Phosphites
作者:Shaohua Wang、Wenjie Liu、Ziying Li、Yanling Huang、Shenghao Li、Anda Wang
DOI:10.1055/s-0035-1560495
日期:——
An efficient and generally applicable protocol for the silver-catalyzed direct phosphonation of thiazolo[3,2- b ]-1,2,4-triazoles with dialkyl phosphites has been developed. This transformation gives phosphonated products in moderate to good yields with high regioselectivity.
An efficient microwave-assisted Pd(OAc)2-catalyzed direct arylation of thiazolo[3,2-b]-1,2,4-triazoles with aryl bromides under ligandless conditions has been developed. The method is functional group tolerant and provides rapid access to target compounds in good yields.
Sodium Hydroxide: a Mild and Inexpensive Catalyst for the Regioselective Synthesis of 2-Substituted 5-Methylthiazolo[3,2-b]-s-triazoles‡
作者:Majid. M. Heravi、Mahmood Tajbakhsh
DOI:10.1039/a802038h
日期:——
The facile and regioselective synthesis of 2-substituted 5-methylthiazolo[3,2-b]-s-triazoles has been performed by the catalytic action of NaOH on 3-propynylthio-s-triazoles.