107549-75-7

Upstream product

• 925-90-6 ethylmagnesium bromide 
• 623-27-8 terephthalaldehyde, 
• 557-20-0 diethylzinc 
• 624-38-4 para-diiodobenzene 
• 123-38-6 propionaldehyde 

Downstream Products

• 4815-57-0 1,4-di(n-propyl)benzene 

Relevant academic research and scientific papers

Selective halogen - Magnesium exchange reaction via organomagnesium ate complex

Halogen-magnesium exchange of various aryl halides is achieved with a magnesium ate complex at low temperatures. Tributylmagnesate (nBu3MgLi) induces facile iodine-magnesium exchange at -78 °C. Dibutylisopropylmagnesate (iPrnBu2MgLi) is more reactive than nBu3MgLi, and this reagent accomplishes selective bromine-magnesium exchange at -78 °C. This procedure is utilized for the preparation of various polyfunctionalized arylmagnesium species. The exchange of alkenyl halides using this method proceeds with retention of configuration of the double bond.

Asymmetric synthesis of chiral diols by the catalytic enantioselective dialkylation of tere-, iso-, and phthalaldehydes and by a catalytic enantioselective autoinductive reaction

Optically pure aromatic diols were synthesized by the highly enantioselective dialkylation of aromatic dialdehydes with dialkylzincs in the presence of a catalytic amount of chiral aminoalcohol 1 or chiral thiophosphoramide alcohol 2 with Ti(0-i-Pr)4. The chiral titanium(IV) alkoxide of 4b, a diisopropylated product of isophthalaldehyde, catalyzed the addition of diisopropylzinc to isophthalaldehyde to gave a chiral zinc alkoxide of 4b with the same configuration by an enantioselective autoinductive reaction (up to 44% e.e.).

Photoelectron Spectra of Paracyclophane and Paracyclophane-4-ene. An Estimation of Inductive and Hyperconjugative Effect for Paracyclophanes

Based on the split of the first two bands in the photoelectron(PE)spectra of paracyclophane, paracyclophane-4-ene, 1,4-di-n-butyl-, 1,4-di-n-propyl- and 1,4-diethylbenzene as well as p-xylene it is shown that the inductive and hyperconjugative effec