Multiple choice

Among the following -------------------- reagent acts as a catalyst in the production of polyurethane.

  1. Tetramethylguanidine

  2. 2,2,6,6-Tetramethylpiperidine

  3. 2,2,2-Trichlorethoxycarbonyl chloride

  4. 1,3-Propanedithiol
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A Correct answer
Explanation

Tetramethylguanidine is a strong amine base with a higher pKa than typical amines, therefore it can be used where a higher pKa is needed and as a substitute for DBU, DBN. It is also used as a catalyst in the production of polyurethane.

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