BENITEZ F. M.; GRUNWELL J. R., TETRAHEDRON LETT. <TELE-AY>, 1977, NO 39, 3413-3416 D2-#2#
作者:BENITEZ F. M.、 GRUNWELL J. R.
DOI:——
日期:——
Backer; Stevens, Recueil des Travaux Chimiques des Pays-Bas, 1940, vol. 59, p. 423,432
作者:Backer、Stevens
DOI:——
日期:——
Synthesis of Polysubstituted Thiophenes<i>via</i>Base-Induced [2+2+1] Cycloaddition Reaction of Alkynes and Elemental Sulfur
作者:Weibing Liu、Cui Chen、Hailing Liu
DOI:10.1002/adsc.201500422
日期:2015.12.14
A simple approach to polysubstituted thiophene derivatives is demonstrated. The synthesis is highlighted by the direct [2+2+1] cycloadditionreaction to construct carbon-sulfur and carbon-carbon bonds, without adding oxidizing, reducing and noble metal agents. All tested substrates provided their corresponding thiophene products in high isolated yields under the optimized conditions.