| 摘要 |
A process for the preparation of protected dihydroxypropyl trialkylammonium salts, particularly in chiral form is described. In particular, a process for the preparation of (2,2-dimethyl-1,3-dioxolan-4 - ylmethyl) trialkylammonium salts, particularly in chiral form is described. Furthermore, a process is described wherein the (2,2- dimethyl-1,3-dioxolan-4ylmethyl) trialkylammonium salts is a 2,2-dimethyl-1,3-dioxolan-4-ylmethyl trimethylammonium salt, preferably in chiral form. The protected dihydroxypropyl trialkylammonium salts lead to L-carnitine (9) when in chiral form (5).</SDO AB>
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