128371-56-2

Upstream product

• 84673-82-5 triphenylphosphorane 
• 123-11-5 4-methoxy-benzaldehyde 
• 104-92-7 1-bromo-4-methoxy-benzene 
• 22430-47-3 (1E,3E)-1,4-bis(trimethylsilyl)-1,3-butadiene 
• 754-05-2 ethenyltrimethylsilane 
• 17891-78-0 1,3-bis(trimethylsilyl)propene 
• 836-41-9 p-methoxybenzylidene-phenylamine 
• 32507-39-4 (E)-1-(buta-1,3-diene-1-yl)-4-methoxybenzene 
• 75-77-4 chloro-trimethyl-silane 
• 128371-60-8 trimethylsilylallylphosphonium chloride 

Downstream Products

• 112371-27-4 1-Methoxy-4-((E)-1,4,4-trimethoxy-but-2-enyl)-benzene 

Relevant academic research and scientific papers

Aza-peterson olefinations: Rapid synthesis of (E)-alkenes

An aza-Peterson olefination methodology to access 1,3-dienes and stilbene derivatives from the corresponding allyl- or benzyltrimethylsilane is described. Silanes can be deprotonated using Schlosser's base and added to N -phenyl imines or ketones to directly give the desired products in high yields.

Ruthenium-Catalyzed Silylation of 1,3-Butadienes with Vinylsilanes

A novel method for the synthesis of 1-silyl-substituted 1,3-butadienes, based on [RuHCl(CO)(PCy3)2]-catalyzed silylative coupling of terminal (E)-1,3-dienes with vinylsilanes, is reported. The reaction provides a facile and straightf

A synthesis of (1 E,3 E)-TMS dienes from keto-xanthates via Chugaev-type elimination

An efficient route leading to exclusively (1E,3E)-TMS dienes is described. Radical xanthate addition of keto-xanthates to vinyltrimethylsilane followed by one-pot Chugaev elimination/cyclization and in situ oxidation with m-CPBA afforded the corresponding TMS 2-sulfolenes. Isomerization to 3-sulfolenes by the action of DBU with the extrusion of sulfur dioxide in refluxing toluene gave the titled (1E,3E)-TMS dienes.

A straightforward route to polyenylsilanes by palladium- or nickel-catalyzed cross-coupling reactions

An efficient conversion of bis-silylated dienes and trienes into polyenylsilanes by cross-coupling reactions is described. The aryl substituted polyenes are synthesized by ipso-borodesilylation with BCl3 followed by Pd-catalyzed coupling reactions of the resulting boron derivative with aryl halides, whereas the synthesis of alkyl substituted polyenes requires the conversion of the boron intermediate into iodo-derivative and the subsequent coupling with alkyl Grignard reagents in the presence of a Ni(II) catalyst.

A new one-pot synthesis of silylated 1,3-dienes

A new convenient one-pot synthesis of substituted silylated 1,3-dienes starting from the commercial available substances is described.