Patent ID: 8653269

Claim:
A process for producing a t-butoxycarbonylamine compound comprising the use of phosgene or a phosgene equivalent, t-butanol, an organic base and a primary or secondary amine compound or primary or secondary ammonium salt, which includes any one of following processes (a) to (f): (a) a process comprising the addition of a solution containing a primary or secondary amine compound and an organic base to a solution containing phosgene or a phosgene equivalent and t-butanol; (b) a process comprising the addition of a solution containing a primary or secondary amine compound, an organic base and t-butanol to a solution containing phosgene or a phosgene equivalent; (c) a process comprising a substantially simultaneous addition of a solution containing a primary or secondary amine compound, a solution containing an organic base and a solution containing phosgene or a phosgene equivalent to a solution containing t-butanol; (d) a process comprising the addition of a solution containing a primary or secondary amine compound and a solution containing an organic base to a solution containing t-butanol while blowing in phosgene gas; (e) a process comprising the addition of a solution containing t-butanol, a primary or secondary amine compound and an organic base to a reaction solution while blowing in phosgene gas; and, (f) a process comprising the addition of an organic base to a solution containing phosgene or a phosgene equivalent, t-butanol and a primary or secondary ammonium salt.