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32.2 Product Class 2: Monofunctionalized Allenes and Higher Cumulenes

DOI: 10.1055/sos-SD-032-00025

Hashmi, A. S. K.Science of Synthesis, (20083223.

General Introduction

Allenes 1 with only one heteroatom on the cumulated diene core represent a large family of compounds which have found widespread use in synthesis. The related butatrienes are much less abundant and due to the synthetic routes to such systems, the unsymmetrical representatives of type 2 are an even smaller subgroup of the small butatriene family (Scheme 1).

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