Summary of the reaction of alkynes with sulfur-containing structures and limitations or progress of the reactions.

Reactants	Product	Catalyst	Solvent	Method employed	Reaction time	Yield	Limitations or progress	Ref.
		Ag3PO4	DMSO	H2O, 70 °C	6 h	Up to 74%	(1) New transformation of alkynes	Tang et al.59
							(2) C–C, C–N, and C–S bonds formed.
							(3) Excellent FG tolerance
		Ag3PO4	DMSO	H2O, 70 °C	4 h	Up to 75%	Efficient C to N aryl migration of homopropargylic alcohol	Ning et al.60
		CuBr·SMe2	Toluene	BDU, 100 °C	22 h	53–97%	Electronic and steric variations had not remarkable effect on the reaction	Khalaj et al.61
		Eosin Y	EtOH	I2, K2CO3, visible light, RT	48 h	52–80%	(1) Exclusive Z-selectivity	Sahoo et al.62
							(2) C–S and C–O bond formation
		—	DMF	I2, K2CO3, 70 °C	5 h	Up to 85%	(1) C–S and C–N bond formation	Ansari et al.63
							(2) Excellent stereoselectivity
							(3) Mild operation
		—	—	KF, 50 °C	5 h	Up to 81%	(1) Stereoselective	Hazarika et al.64
							(2) Transition-metal-free
							(3) Multiple bond cleavage and bond formation