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ChemicalBook CAS DataBase List 1-Butylpyrrolidine
767-10-2

1-Butylpyrrolidine synthesis

13synthesis methods
The synthesis of 1-butylpyrrolidine and its derivatives (1-butylpyrrolidine with a little of 1-butenylpyrrolidines) was developed via a one-pot method from ammonia and 1,4-butandiol. Here, the product of 1-butylpyrrolidine was emphatically investigated, and the yield was 76% under the optimized conditions. Such a route was realized through successive N-alkylation using aqueous ammonia as the nitrogen source over the CuNiPd/ZSM-5 catalyst, which was prepared by a simple incipient wetness method. In this route, 1,4-butandiol not only participated in the formation of the N-heterocycle, but also acted as an alkylating reagent. This work offers a straightforward, economical route for 1-butylpyrrolidine and its derivatives.
synthesis of 1-butylpyrrolidine and its derivatives
One-pot synthesis of 1-butylpyrrolidine and its derivatives from aqueous ammonia and 1,4-butandiol over CuNiPd/ZSM-5 catalysts
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Yield: 96%

Reaction Conditions:

with N-butylamine

Steps:

2 Preparation of N-(n-butyl)-pyrrolidine
EXAMPLE 2 Preparation of N-(n-butyl)-pyrrolidine 11.7 kg of butane-1,4-diol were reacted with 7.3 kg of n-butylamine similarly to Example 1. N-(n-butyl)-pyrrolidine was obtained in 96% yield.

References:

BASF Aktiengesellschaft US4910304, 1990, A

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