The condensation of active methylene reagents with salicylaldehyde:: Novel synthesis of chromene, azaanthracene, pyrano[3,4-c]chromene and chromeno[3,4-c]pyridine derivatives

被引：8
作者：
Abu Elmaati, TM [1 ]
El-Taweel, FM
Elmougi, SM
Elagamey, A
机构：
[1] Fac Appl Arts, Dumyat, Egypt
[2] Fac Sci, Dept Chem, New Demietta, Egypt
来源：
JOURNAL OF HETEROCYCLIC CHEMISTRY | 2004年 / 41卷 / 05期
关键词：
D O I：
10.1002/jhet.5570410502
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
On heating of the cyanoacetic acid cyclopentylidene hydrazide I with salicylaldehyde in the presence of bases the azaanthracene derivative 6 was formed. Also, reaction of 3 with malononitrile and ketones 10a,b afforded the pyrano[3,4-c]chromene 9 and chromeno[3,4-c]pyridine 11 respectively. A mechanism for these reactions is proposed.
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页码：655 / 658
页数：4
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