| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | (R)-2-phenyl-(S)-4-hexadecyloxymethyl-1,3-dioxane | 324534-26-1 | C27H46O3 | 418.66 |
(S)-Butane-1,2,4-triol (2) has been investigated as a potential chiral auxiliary for the formation of non-racemic acetals derived from η6-arylcarbonyl complexes of tricarbonylchromium. Predominantly the cis dioxan (5) was formed from benzaldehyde, leading to preparation of the η6-Cr(CO)3 complex (16), and of the derived complexes (23) and (24). Lithiationelectrophile quenching of these complexes gave a mixture of products arising fromortho and benzylic functionalization. Reaction of acetophenone, or of the η6-Cr(CO)3 complexes (45) or (46), with either the triol (2) or its tris(silyl) ether (15) under conditions of kinetic or thermodynamic control gave an inseparable mixture of acetals.