38503-54-7

Upstream product

• 158727-08-3 1,1,5,5-tetraphenyl-pentane-1,5-diol 
• 530-48-3 1,1-Diphenylethylene 
• 50-00-0 formaldehyd 
• 818-38-2 Diethyl glutarate 
• 7664-93-9 sulfuric acid 
• 158727-11-8 2,2,6,6-Tetraphenyl-tetrahydro-pyran 
• 64-19-7 acetic acid 
• 1674-27-7 1,1,5,5-tetraphenyl-1,2,3,4-pentatetraene 

Downstream Products

• 4600-77-5 9-[2-(2,2-Diphenyl-vinyl)-4,4-diphenyl-but-3-enylidene]-9H-fluorene 
• 96809-07-3 2,4-dibromo-1,1,5,5-tetraphenyl-penta-1,4-diene 
• 96271-47-5 2,4-Dichlor-1,1,5,5-tetraphenyl-pentadien-(1,4) 
• 106917-06-0 3-Acetyl-4-hydroxy-3-hexene-2,5-dione 
• 134643-38-2 3-Acetyl-2-methyl-4-(3,3-diphenyl-2-propenyl)-5,5-diphenyl-4,5-dihydrofuran 
• 134643-39-3 Bis(4-acetyl-5-methyl-2,2-diphenyl-2,3-dihydro-3-furyl)methane 
• 134643-56-4 Bis(4-ethoxycarbonyl-5-methyl-2,2-diphenyl-2,3-dihydro-3-furyl)methane 
• 5209-25-6 ethyl-3-(1,1,5,5-tetraphenyl-1,4-pentadienyl) ether 
• 1674-27-7 1,1,5,5-tetraphenyl-1,2,3,4-pentatetraene 
• 72228-04-7 3,3-Dicyano-1,1,5,5-tetraphenyl-1,4-pentadien 
• 325770-97-6 methyl 2-carbomethoxy-4-benzyl-4-(2,2-diphenylvinyl)-6,6-diphenyl-2,5-hexadienoate 
• 325770-92-1 ethyl 2-benzyl-2-(2,2-diphenylvinyl)-4,4-diphenyl-3-butenoate 
• 325770-96-5 methyl 2-carbomethoxy-4-methyl-4-(2,2-diphenylvinyl)-6,6-diphenyl-2,5-hexadienoate 
• 325770-94-3 2-benzyl-2-(2,2-diphenylvinyl)-4,4-diphenyl-3-butenol 

Relevant academic research and scientific papers

Catalytic cross deoxygenative and dehydrogenative coupling of aldehydes and alkenes: A redox-neutral process to produce skipped dienes

A novel catalytic cross deoxygenative and dehydrogenative coupling reaction of aldehydes and alkenes was established via a cooperative catalysis approach. This transformation provided an efficient and atom-economic protocol for the synthesis of 1,4-skippe

Reactions of trimethylsilyl-derived iodohydrins with electron-rich π-systems

Reactions of trimethylsilyl-derived iodohydrins of the type R1R2CH-CH(I)OTMS, with electron-rich olefins, and the effects of certain factors on these reactions, were studied. The trimethylsilyl-derived iodohydrins were obtained in situ by reacting R1R2CH-CHO (R1 = R2 = H; R1 = H, R2 = alkyl, phenyl) with TMSI. The corresponding trimethylsilyl enol ether derivatives (R1R2C=CH-OTMS), and 1,1-diarylethylenes were the olefins used. Aldehydes of the type RCH2-CH=O reacted smoothly in the presence of TMSI to yield the condensation product RCH2-CH=C(R)-CH=O. Both RCH(-CH=CAr2)2 and the cyclic acetal 5 were obtained as main products of the RCH=O-TMSI-CH2=CAr2 reaction system, depending on the [RCHO]:[TMSI]:[CH2=CAr2] concentration ratio. The mechanisms of formation for the various main products and by-products are discussed. TMSI substitutes, formed by reacting Me3SiCl with each of several Lewis acids, were also used.

Manganese(III) or Cobalt(III)-Mediated Oxidative Radical Reactions of Terminal Dienes. One-Pot Synthesis of Bis(dihydrofuran)s

The reactions of terminal dienes such as 1,4-pentadienes and 1,5-hexadienes with tris(2,4-pentanedionato)manganese(III) () gave α,ω-bis(dihydrofuryl)alkanes (abbreviated bis(dihydrofuran)s, hereafter) in good yields.The reactions with tris(2,4-pentanedionato)cobalt(III) () instead of yielded the same bis(dihydrofuran)s quantitatively.The dienes also reacted with ethyl 3-oxobutanoate in the presence of manganese(III) acetate () or cobalt(III) acetate () to produce the corresponding bis(dihydrofuran)s.The reactions of 1,3-butadienes with the manganese(III) or cobalt(III) complexes afforded only mono(dihydrofuran)s and oxidative rearrangement products, but the corresponding bis(dihydrofuran)s were not formed.The reaction of 1,5-hexadienes with ethyl hydrogen malonate in the presence of did not give bis-annulated products, but mono(γ-lactone)s in moderate yields.The synthetic applications and limitations of the bis(dihydrofuran)s formation are discussed.