[Purification of a pseudo-cholinesterase from the haemolymph of Helix pomatia].

Abstract

[ 1 9 5 9 ] . The nature of the restricted rotation in dialkylaminosulphinyl chlorides (3) is under investigation. Dimethylaminosulphinyl chloride (3 a) was prepared from O-ethyl ./V,iV-dimethylamidosulphite and thionvl chloride12; b.p. 30°/0.2 mmHg, ng 1.4960 (I.e.13 43 — 45°/0.3 mmHg). The chlorides (3 b) and (3 c) were synthesized directly from the corresponding amines and thionyl chloride 13; 3 b: b.p. 62°/0.6mmHg, tid 1.5165; 3 c: b.p. 75 — 76°/0.4 mmHg, semisolid compound at room temperature.