Synthesis of Novel Spiro Compounds using Anthrone and Pyrazole-5-thione Moieties: A Michael Addition approach
2007 ◽
Vol 2007
(8)
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pp. 468-471
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Keyword(s):
Novel routes for the synthesis of spiro derivatives anthrone have been designed using a Michael addition reaction followed by a Dieckmann condensation and Thorpe–Ziegler cyclisation. Bis-Michael addition of pyrazole-5-thione with 1,5-diarylpenta-1,4-dien-3-one gave directly a spiro derivative of pyrazole-5-thione. An enol lactone was synthesised by using mono Michael addition on dimedone, followed by hydrolysis and condensation.
2018 ◽
Vol 16
(48)
◽
pp. 9461-9471
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1993 ◽
Vol 34
(17)
◽
pp. 2729-2732
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Keyword(s):
2008 ◽
Vol 39
(1)
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pp. 139-157
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