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1
Organic Mechanisms: Reactions, Stereochemistry and Synthesis
AlCl 6 6 3 AlCl 4 AlCl 4 AlCl 4 AlCl 4 tert-Bu H + + Figure 5.5 shows an example
of a de-tert-butylation by a reaction of this type. In fact, both tert-butyl groups of
the aromatic compounds shown in the figure are removed by ipso substitutions.
Reinhard Bruckner, Michael Harmata,
2010
2
Asymmetric
Butylation of Aldehydes Mediated by Chiral ...
Mixed organoalkali compounds, such as mixture of n-butyl lithium and potassium t-butoxide and mixture of alkali amides, are widely known for their enhanced basicities.
3
Recent Advances in Basic and Applied Aspects of Industrial ...
RESULTS AND DISCUSSION 3.1. t-butylation of phenol The t-butylation of
phenol over A1203, MgO and hydrotalcites is studied using a feed mixture of
phenol and isobutanol (Ph-OH : iso-BuOH = 1:7) to understand the catalytic
activity of ...
T.S.R. Prasada Rao, G. Murali Dhar,
1998
4
Amino Acids and Peptides
Further studies on the removal oft-butyl-based protection by trifluoroacetic acid
has confirmed the fact that C-t-butylation of tyrosine takes place to an extent of
0.5 — 1% in 30min, and that the butylation proceeds through t-butyl tri-
fluoroacetate ...
5
Handbook of Elemental Speciation: Techniques and Methodology
Butylation reactions, using for example butylmagnesium chloride, are interesting
and useful alternatives for the speciation of both Hg and Pb compounds in
biological [68, 70, 71] and environmental samples [72]. Radojevic et al. [73]
compared ...
6
Catalysis of Organic Reactions
Fei He, and Genhui Xu State Key Laboratory of C5 Chemical Technology, Tianjin
University, Tianjin, 300072 P RChina Abstract The ten butylation of phenol was
investigated over zeolite HY catalyst using tert-butyl alcohol as the alkylating ...
7
From Zeolites to Porous MOF Materials - the 40th Anniversary ...
Tert-butylation. of. phenol. over. H,. HY,. HZSM-5. and. HAlMCM-41. Xiang-Hai
Tang, Ai-Ping Zhang, Jie Liu and Xin-Liang Fu College of Chemistry, Nankai
University, Tianjin 300071. Tel.: +86-22-23507966; E-mail: ...
Ruren Xu, Jiesheng Chen, Zi Gao,
2007
8
Medical Applications of Mass Spectrometry
Butylation is making less exacerbated the difference in proton affinity between
mono-acidic and bi-acidic compounds, and therefore it enables the use of a
neighbor AC (namely the d3-C8 or d9-C14) as internal standard. In the case of
any ...
Karoly Vekey, Andreas Telekes, Akos Vertes,
2011
9
Advances in Water-Electrolyte Imbalance Research and ...
Dalian University of Technology: Reaction mechanism of tert-butylation of phenol
with tert-butyl alcohol over H-beta zeolite - An ONIOM study According to the
authors of a study from Dalian, People's Republic of China, “Tert-butylation of ...
10
Nanoporous Materials IV: Proceedings of the 4th ...
bEnvironment and Process Technology Division, Korea Institute of Science and
Technology (KIST), Seoul 136-791, Korea. t-Butylation of l,2-dihydroxubenzene (
DHB) with isobutene as alkylating agent was carried out over Zn-Al-MCM-41(TIE,
...
Abdel Sayari, Mietek Jaroniec,
2005