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- Title
Synthesis and Characterization of Novel (E)-tert-butyl 7-(4-methoxyphenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hept-2-enoate and (E)-diethyl (6-(4-methoxyphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hex-1-en-1-yl)phosphonate; Application of Olefin Cross Metathesis
- Authors
Hussain, H.; Gilani, S. R.; Ali, Z.; Hussain, I.
- Abstract
Two novel compounds (E)-tert-butyl 7-(4-methoxyphenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hept-2-enoate and (E)-diethyl (6-(4-methoxyphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hex-1-en-1-yl)phosphonate were synthesized in excellent yields by olefin cross metathesis (CM). 3-(4-methoxyphenyl)propyl diisopropylcarbamate and allylboronic acid pinacol ester were reacted in the presence of s-BuLi/N,N,N,N-tetramethylethyllenediamine (TMEDA) to form sec. boronic ester which was further reacted with tert-butyl acrylate and diethyl vinylphosphonate respectively to get the desired products. Both novel compounds have applications as reactants for cyclopropanation and cyclopentataion for asymmetric synthesis.
- Publication
Pakistan Journal of Chemistry, 2015, Vol 5, Issue 3, p1
- ISSN
2220-2625
- Publication type
Academic Journal
- DOI
10.15228/2015.v05.i03.p04201509315090