1-Formylpyrrolidine (N-Formylpyrrolidine) is the monomer constituent of gas clathrate inhibitor. 1-Formylpyrrolidine can be used to synthesize 1-oxa-3,4-dimethyl-5- (1-pyrrolldino) -2,2-di (tert-butyl) silacyclopentane and 1-oxa-4-isopropyl-5- (1-pyrrolidino) -2,2-di (tert-butyl) silacyclopentane[1][2].