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Wednesday 28 December 2016

3,3′,5,5′-Tetramethyl-2,2′-biphenol



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Figure
3,3′,5,5′-Tetramethyl-2,2′-biphenol
10.0 g of 2,4-dimethylphenol.................. of 3,3,′,5,5′-tetramethyl-2,2′-biphenol.1H NMR (400 MHz, CDCl3) δ = 7.00–7.03 (m, 2H) 6.87–6.90 (m, 2H), 4.94 (s, 2H, OH), 2.30 (s, 12H). 13C NMR (100 MHz, CDCl3) δ = 149.26, 132.14, 130.14, 128.64, 125.31, 122.30, 20.57, 16.31. Mp: 135 °C. GC purity >98%. Analytical data are in agreement with those previously reported.(37)
KirsteA.NiegerM.MalkowskyI. M.SteckerF.FischerA.WaldvogelS. R. Chem. - Eur. J. 200915,2273– 2277DOI: 10.1002/chem.200802556
 str1 str2
  • 2,2'-Biphenyldiol, 3,3',5,5'-tetramethyl- (8CI)
  • 6,6'-Bi-2,4-xylenol (6CI,7CI)
  • 3,3',5,5'-Tetramethyl[1,1'-biphenyl]-2,2'-diol
  • 2,2'-Dihydroxy-3,3',5,5'-tetramethylbiphenyl
  • 3,3',5,5'-Tetramethyl-2,2'-biphenol
  • 3,3',5,5'-Tetramethyl-[1,1'-biphenyl]-2,2'-diol
  • 3,3',5,5'-Tetramethylbiphenyl-2,2'-diol
cas 26567-10-2
str1 str2

Scalable and Selective Preparation of 3,3′,5,5′-Tetramethyl-2,2′-biphenol

 Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
 Evonik Industries AG, Paul-Baumann-Straße 1, D-45772 Marl, Germany
§ Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
Org. Process Res. Dev., Article ASAP

P.S. : The views expressed are my personal and in no-way suggest the views of the professional body or the company that I represent.


///////////3,3′,5,5′-Tetramethyl-2,2′-biphenol, scaleup

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