Add time:08/07/2019         Source:sciencedirect.com

1-Piperidino-1-trimethylsilyloxycyclopropane and the corresponding 1-hydroxy-1-piperidinocyclopropane, conveniently prepared from the piperidide of 3-chloropropionic acid, react as cyclopropanone equivalents with various nucleophiles. Use of these derivatives in the formation of pyrroles, pyrrolines and pyrrolizidines is described. The rearrangement of dicyclopropyl ketimines is explored.

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