A novel synthesis of 2-alkylthiobenzothiazoles and 2-alkylthiobenzoxazoles
3H-Benzothiazole-2-thione and 3H-benzoxazole-2-thione were selectively S-alkylated by use of O-alkylisoureas as the alkylating reagents. The reactions could be performed under mild reaction conditions in short reaction times, and high yields were obtained using O-primary-alkylisoureas, whereas low yields were obtained with sec-and tert-alkylisoureas.
Yu, Yanfei,Li, Zhengning,Jiang, Lan
experimental part
p. 632 - 640
(2012/06/01)
Copper-catalyzed direct thiolation of azoles with aliphatic thiols
Cu(ii)-catalyzed direct thiolation of azoles with thiols is described via intermolecular C-S bond formation/C-H functionalization under oxidative conditions. Both aryl thiols and aliphatic thiols are used as coupling partners, and furnished the thiolation
One-Flask Synthesis of Sulfides from Alcohols and Alkyl Halides Using Benzoxazoline-2-thione
The synthesis of sulfides from alcohols and benzoxazoline-2-thione (I) was studied to establish its generality and the mechanism of the reaction.A one-flask synthesis of sulfides from alcohols was developed.According to this procedure, various sulfides were prepared without the use of illsmelling thiols.Moreover, partial sulfenylation of diols to give sulfenyl alcohols was achieved.Keywords - one-flask synthesis; benzoxazoline-2-thione; partial sulfenylation; sulfide; sulfenyl alcohol
A NEW METHOD OF N-ACETALIZATION AND S- OR N-ETHYLATION BY MEANS OF ORTHOFORMIC ESTER
A new method is proposed for the synthesis of amidoacetals by acetalization of the imino group with orthoformic ester.The thermal instability of the obtained amidoacetals in the presence of groups having a clearly defined negative inductive effect leads to the formation of S- or N-ethylated products.
Rutavichyus, A. I.,Iokubaitite, S. P.
p. 2371 - 2375
(2007/10/02)
More Articles about upstream products of 62652-30-6