cas 266312-20-3, 2,3,5-TRIFLUOROPYRIDINE-4-CARBOXALDEHYDE | Articles data ｜lookchem

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266312-20-3

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Synthesis of difluorinated pyridinecarboxaldehyde via electrophilic fluorination
An efficient synthesis of novel 3,5-difluoropyridine-4-carboxaldehyde using N-fluoro-benzenesulfonimide (NSFi) is described. Difluorination was achieved through the reaction of 3,5-dihalo-1,3-dioxolane pyridine with n-butyllithium followed by N-fluorobenzenesulfonimide at -120 °C in good to high yields. Maintaining the low temperature during the transmetallation was found to be critical for the selective formation of the difluoro-susbstitution over the monofluoro one.
Ko, Yoon-Joo,Park, Kyung-Bae,Shim, Seung-Bo,Shin, Jung-Hyu
p. 755 - 759
(2008/03/28)

Synthesis of tetrakis(multifluoro-4-pyridyl)porphin derivatives as acetylcholinesterase inhibitors
New tetrakis(multifluoro-4-pyridyl)porphin derivatives (2-4) and water soluble porphyrin (5) were synthesized to investigate their interactions with acetylcholinesterase from electric eel. These compounds have been found to be the potent reversible inhibitors of the enzyme with K(i) values of μM range. In addition, porphyrin (5) showed broad spectrum of anticancer activities. (C) 2000 Elsevier Science Ltd. All rights reserved.
Moon, Sin Chul,Shin, Jung-Hyu,Jeong, Bong Ho,Kim, Hee Seok,Yu, Byung Soo,Lee, Ji-Sook,Lee, Bang Sook,Namgoong, Sung Keon
p. 1435 - 1438
(2007/10/03)

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Chemical Properties

Boiling Point: 181.6 °C at 760 mmHg
Flash Point:63.6 °C
Density: 1.506 g/cm³
PKA: -7.27±0.28(Predicted)
PSA: 29.96000
LogP: 1.31140

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