Add time:08/25/2019         Source:sciencedirect.com

A novel methodology for the synthesis of guanidines from amines has been developed using polymer assisted synthesis, potentially allowing the preparation of series of compounds in a high throughput manner. The methodology comprises the use of polymer-supported carbodiimide as the activating agent for N,N′-bis(tert-butoxycarbonyl) thiourea with polymer-supported trisamine as a scavenger, followed by deprotection with trifluoroacetic acid. For the first time, polymer-supported carbodiimide has been utilized as an activating agent to synthesize guanidines.

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