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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 10
BKCSDE 23(10)
October 20, 2002 

 
Title
Synthesis of 6,7-Dichloro-5,8-phthalazinedione and Its Derivatives
Author
Jin Sung Kim, Kye Jung Shin, Dong Chan Kim, Yong Koo Kang, Dong Jin Kim, Kyung Ho Yoo, Sang Woo Park
Keywords
Phthalazine, Efficient synthetic route, Chloroxidation, 6,7-Dichloro-5,8-phthalazinedione
Abstract
An efficient procedure for the synthesis of 6,7-dichloro-5,8-phthalazinedione (4) was developed in 49% overall yield via chloroxidation of 5,8-diaminophthalazine (8). And a series of its derivatives, 7-pyridinium-5,8-phthalazinedione-6-oxide (9), 6-chloro-7-phenylamino-5,8-phthalazinedione (10), 6,6-dimethoxy-6H-2,3,6b,11-tetraazabenzo[α]fluoren-5-one (11a), and 6,6-diethoxy-6H-2,3,6b,11-tetraazabenzo[α]fluoren-5-one (11b) have been synthesized.
Page
1425 - 1428
Full Text
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