69884-90-8

Upstream product

• 52963-10-7 1-bromo(1,4-pentadienyl)benzene 
• 960-16-7 tributylphenylstannane 
• 530-48-3 1,1-Diphenylethylene 
• 4873-09-0 allyl tosylate 
• 591-80-0 pent-4-enoic acid 
• 14799-59-8 (2-cyclopropylethene-1,1-diyl)dibenzene 
• 818-57-5 Methyl 4-pentenoate 
• 536-74-3 phenylacetylene 
• 26929-46-4 1,1-diphenylpent-4-en-1-ol 

Relevant academic research and scientific papers

B(C6F5)3-Catalyzed Ring Opening and Isomerization of Unactivated Cyclopropanes

Catalytic amounts of B(C6F5)3 promote the ring opening and subsequent isomerization of a series of unactivated cyclopropanes to afford terminal olefins in good yields when a hydrosilane and 2,6-dibromopyridine are employed as additives.

Copper-catalyzed oxidative heck reactions between alkyltrifluoroborates and vinyl arenes

We report herein that potassium alkyltrifluoroborates can be utilized in oxidative Heck-type reactions with vinyl arenes. The reaction is catalyzed by a Cu(OTf)2/1,10-phenanthroline with MnO2 as the stoichiometric oxidant. In addition to the alkyl Heck, amination, esterification, and dimerization reactions of alkyltrifluoroborates are demonstrated under analogous reaction conditions. Evidence for an alkyl radical intermediate is presented.

Rhodium-catalyzed allylation of styrenes with allyl tosylate

Rhodium-catalyzed allylation of styrene with allyl tosylate gave 1-phenylpenta-1,4-diene, and various styrene derivatives were also allylated yielding 1,4-dienes or 1,5-dienes.

Palladium-Catalyzed Consecutive One-Pot Reaction of Acetylenes with Allyl Bromide and Organotin Compounds

Allyl bromide adds to a terminal acetylene under the palladium complex to give 1-bromo-1,4-pentadiene which can further react with organotin compounds without further addition of palladium complex to give 1-substituted 1,4-pentadiene. These two reactions