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