56370-37-7

Upstream product

• 2798-73-4 (Z)-1-methoxybut-1-en-3-yne 
• 3076-54-8 phenyllead(IV) triacetate 
• 124-41-4 sodium methylate 
• 187796-59-4 (E)-1-Chloro-4-phenyl-1-phenylsulfonylbut-1-en-3-yne 
• 591-50-4 iodobenzene 
• 69626-47-7 (4c-methoxy-but-3-en-1-ynyl)-copper 

Downstream Products

• 154116-06-0 1-Phenyl-4-(pentamethyldisilanyl)-1,3-butadiyne 

Relevant academic research and scientific papers

Palladium-catalyzed cross-coupling of organolead(IV) triacetates with terminal alkynes

The palladium-catalyzed carbon-carbon bond formation of organolead(IV) triacetates with terminal alkynes was accomplished with Pd2(dba)3·CHCl3 (5mol%) and CuI (10mol%) in the presence of NaOMe (2 equiv.) in MeOH/CH3/

Regio- and stereoselective vinylic substitution reactions of α-haloenyne sulfones

The nucleophilic vinylic substitution reaction of (E)-α-haloenyne sulfones 2, 5-8 with sodium alkoxides proceeded regioselectively to give (E)-α-alkoxyenyne sulfones 9-17 in high yields with exclusive retention of their configuration.

Photochemistry of 1-Aryl-4-(pentamethyldisilanyl)-1,3-butadiynes

All the 1-aryl-4-(pentamethyldisilanyl)-1,3-butadiynes (1a-d) synthesized show strong phosphorescence emissions with triplet energies around 218-260 kJ/mol.Laser photolysis of 1-(p-nitrophenyl)-4-(pentamethyldisilanyl)-1,3-butadiyne (1d) in polar solvents results in the formation of an interesting transient (zwitterion species) through intramolecular electron transfer from disilanyl to the nitro group in the triplet excited state.Irradiation of 1d in methanol or ethanol gives 1-(p-nitrophenyl)-1,3-butadiyne (8) through C-Si bond cleavage from the transient.Photolysis of 1-phenyl-4-(pentamethyldisilanyl)-1,3-butadiyne (1a), 1-(1-naphthyl)-4-(pentamethyldisilanyl)-1,3-butadiyne (1b), and 1-(p-methoxyphenyl)-4-(pentamethyldisilanyl)-1,3-butadiyne (1c) in methanol yields photoaddition products (2-7) through silacyclopropene intermediates.