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N Heterocyclic Carbenes Supported on Vinylic Addition Polynorbornene: A Recyclable and Recoverable Organocatalyst

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Academic year: 2020

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Figure  1. SEM images of polymer 2b: a) before use; b) after five uses in the  synthesis of saturated esters
Table 2. Catalytic results in formation of butyrolactones 4. [a]

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