TFAA/H3PO4-Mediated C-2 Acylation of Thiophene: A Direct Synthesis of Known and Novel Thiophene Derivatives of Pharmacological Interest

2013 ◽  
Vol 51 (3) ◽  
pp. 586-593 ◽  
Author(s):  
P. Bindu ◽  
Shravan Reddy Naini ◽  
K. Shanmukha Rao ◽  
P. K. Dubey ◽  
Sarbani Pal
ChemInform ◽  
2014 ◽  
Vol 45 (47) ◽  
pp. no-no
Author(s):  
P. Bindu ◽  
Shravan Reddy Naini ◽  
K. Shanmukha Rao ◽  
P. K. Dubey ◽  
Sarbani Pal

Author(s):  
J. A. Barltrop ◽  
R. M. Acheson ◽  
P. G. Philpott ◽  
K. E. MacPhee ◽  
J. S. Hunt

1970 ◽  
Vol 9 (5) ◽  
pp. 1071-1075 ◽  
Author(s):  
William E. Newton ◽  
Eugene G. Rochow

2006 ◽  
Vol 84 (10) ◽  
pp. 1250-1253 ◽  
Author(s):  
Mee-Kyung Chung ◽  
Paul Fancy ◽  
Jeffrey M Stryker

The direct synthesis of sterically hindered, partially etherified derivatives of tetrakis(2-hydroxyphenyl)ethene is reported by using the McMurry reductive olefination reaction on a range of differentially substituted 2,2′-dialkoxy benzophenone substrates. Three orthogonal protection strategies are demonstrated, incorporating β-silylethyl, 3-butenyl, and tert-butyl protecting groups, respectively, into the starting benzophenones. The latter proved most efficient, with both the McMurry coupling and deprotection steps occurring concomitantly under the McMurry conditions to directly yield the desired bis(2-hydroxyphenyl)-bis(2-methoxyphenyl)ethene as a 1:1 mixture of E- and Z-diastereoisomers.Key words: preorganized polyaryloxide ligands, McMurry olefination, titanium trichloride, supramolecular chemistry, tetrakis(2-hydroxyphenyl)ethene, 2,2′-disubstituted benzophenone.


2013 ◽  
Vol 86 (5) ◽  
pp. 747-755 ◽  
Author(s):  
N. P. Yevlampieva ◽  
A. P. Khurchak ◽  
Yu. N. Luponosov ◽  
E. A. Kleimyuk ◽  
S. A. Ponomarenko ◽  
...  

2000 ◽  
Vol 30 (14) ◽  
pp. 2541-2548 ◽  
Author(s):  
Georges Dewynter ◽  
A. Houssem Hajri ◽  
Loic Toupet ◽  
Jean-Louis Montero

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