22430-47-3

Upstream product

• 41309-43-7 (2-bromovinyl)trimethylsilane 
• 126688-99-1 (E)-trimethyl(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethen-1-yl)silane 
• 1066-54-2 trimethylsilylacetylene 
• 4440-01-1 lithium phenylacetylide 
• 41309-43-7 (2-bromovinyl)trimethylsilane 
• 103-64-0 bromostyrene 
• 65801-56-1 (E)-2-(trimethylsilyl)-1-(trimethylstannyl)ethylene 

Downstream Products

• 80400-81-3 4,5-bis(hydroxymethyl)-3,6-bis(trimethylsilyl)cyclohex-1-ene 
• 128371-48-2 (1E,3E)-1-(4-nitrophenyl)-4-trimethylsilyl-1,3-butadiene 
• 70960-88-2 trimethyl ((1E,3E)-4-phenylbuta-1,3-dien-1-yl)silane 
• 128371-56-2 ((1E,3E)-4-(4-methoxyphenyl)buta-1,3-dien-1-yl)trimethylsilane 
• 120764-58-1 (1E,3Z)-4-phenylthio-1-trimethylsilyl-1,3-butadiene 
• 120764-59-2 (1E,3E)-4-phenylthio-1-trimethylsilyl-1,3-butadiene 
• 110187-19-4 ostopanic acid 
• 133683-83-7 (2E,4E)-1-phenyl-5-(trimethylsilyl)-2,4-pentadien-1-one 
• 145653-29-8 (2E,4E)-5-Trimethylsilanyl-penta-2,4-dienethioic acid S-phenyl ester 

Relevant academic research and scientific papers

Reactions of five-membered zirconacycloalkynes and zirconacycloallenes with Cp2Zr(H)Cl; Formal hydrogenation by metal hydrides

Reactions of five-membered zirconacycloalkynes and zirconacyloallenes (1-zirconacyclopent-3-ynes and 1-zirconacyclopenta-2,3-dienes) with an excess of Cp2Zr(H)Cl, known as the Schwartz reagent, were studied. Both reactions gave five-membered zirconacycloalkenes, 1-zirconacyclopent-3-enes without subsequent work-up such as protonolysis and hydrogenolysis. The product was identical to the zirconocene-diene complex that was prepared from Cp2Zr(n-Bu)2 (Negishi reagent) and the corresponding 1,4-disubstituted 1,3-dienes. These results indicate that formal hydrogenation by metal hydride took place. The use of diisobutylaluminum hydride or 9-borabicyclo[3.3.1]nonane also gave the same product, albeit in lower yields. The reactions starting from deuterated compounds suggested that double hydrozirconation followed by elimination of a dinuclear zirconium complex resulted in the hydrogenated products.

Oxovanadium(V)-induced oxidation of alkenylzirconocenes for facile inter- and intramolecular coupling

The oxidation reaction of (E)-1-alkenylchlorozirconocenes with an oxovanadium(V) compound at room temperature led to intermolecular homocoupling, giving the corresponding (E,E)-dienes stereoselectively. (E)-1-Alkenyl-1-alkynylzirconocenes underwent the oxovanadium(V)-induced intramolecular cross-coupling of organic substituents on zirconium, leading to the stereoselective formation of the (E)-enynes.