Various dihydrobenzo[f ][1,4]oxazepin-5-ones have been convergently prepared in 2–3 steps by coupling Ugi and Mitsunobu reactions. Two alternative methodologies were used: in the first one the Ugi condensation was followed by a Mitsunobu cyclization (2 steps); in the second one an intermolecular Mitsunobu reaction was followed by a deprotection step and then by an intramolecular Ugi reaction. Also a “convertible” isocyanide was used.
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Titolo: | Multicomponent synthesis of dihydrobenzoxazepinones by coupling Ugi and Mitsunobu reactions | |
Autori: | ||
Data di pubblicazione: | 2006 | |
Rivista: | ||
Abstract: | Various dihydrobenzo[f ][1,4]oxazepin-5-ones have been convergently prepared in 2–3 steps by coupling Ugi and Mitsunobu reactions. Two alternative methodologies were used: in the first one the Ugi condensation was followed by a Mitsunobu cyclization (2 steps); in the second one an intermolecular Mitsunobu reaction was followed by a deprotection step and then by an intramolecular Ugi reaction. Also a “convertible” isocyanide was used. | |
Handle: | http://hdl.handle.net/11567/247551 | |
Appare nelle tipologie: | 01.01 - Articolo su rivista |
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