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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 29, Number 11
BKCSDE 29(11)
November 20, 2008 

 
Title
Lactonization of ω-Hydroxycarboxylic Acids Using (4,5-Dichloro-6-oxo-6H-pyridazin-1-yl)phosphoric Acid Diethyl Ester
Author
Min Jung Kim, Jeum Jong Kim, Ju Eun Won, Seung Beom Kang, Song Eun Park, Kwang Ju Jung, Sang Gyeong Lee*, Yong Jin Yoon
Keywords
Lactonization, ω-Hydroxycarboxylic acid, (6-Oxo-6H-pyridazin-1-yl)phosphoric acid diethylester, Lactone
Abstract
(4,5-Dichloro-6-oxo-6H-pyridazin-1-yl)phosphoric acid diethyl ester (3) is an efficient coupling agent for lactonization of aliphatic and aromatic ω-hydroxycarboxylic acids. Lactonization of ω-hydroxycarboxylic acids with 3 in the presence of equimolar amounts of a base gave the corresponding monoolides, diolides, triolides and/or tetraolides.
Page
2247 - 0
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