- RING OPENING OF 2-ACYLAMINO-4,5-DIHYDRO-3-FURANCARBONITRILES BY USE OF TITANIUM (IV) CHLORIDE
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The ring opening of 2-acylamino-4,5-dihydro-3-furancarbonitriles (1a-f) with titanium (IV) chloride gave the corresponding N-acyl-4-chloro-2-cyanobutanamides (2a-f).On treatment with potassium carbonate, compounds (2a-f) were converted to the corresponding N-acyl-1-cyanocyclopropanecarboxamides (3a-f).On the other hand, the reaction of 2-benzamido-4,5-dihydro-3-thiophenecarbonitriles (4a-c) with titanium (IV) chloride gave the corresponding 2-benzamido-4,5-dihydro-3-thiophenecarboxamides (5a-c).
- Maruoka, Hiroshi,Yamagata, Kenji,Yamazaki, Motoyoshi
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p. 2011 - 2023
(2007/10/02)
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