The invention provides a method for preparing sulfur-containing compounds, the method comprising reacting a donor compound comprising at least one sulfur having at least one lone pair of electrons, with an acceptor compound; wherein the reaction occurs in the presence of an amine, optionally an amine catalyst, capable of activating the sulfur having at least one lone pair of electrons; and wherein the reaction occurs via the formation of an transient intermediate species, optionally a transient intermediate species, between the amine, optionally the amine catalyst and the donor compound; and wherein the donor compound is selected from the group consisting of a sulfurous acid, a sulfenic acid and a sulfinic acid or a salt, ester or amide of a sulfurous acid, a sulfenic acid and a sulfinic acid. The invention also provides sulfur-containing compounds of the formula: wherein R is selected from: (a) 1 -(4-Nitro-phenyl)-3-oxo-3-phenyl-propane; (b) 2-(3-Methyl-4-nitro-isoxazol-5-yl)-1 -phenyl-ethane; (c) 1-(4-Methoxy-phenyl)-2-(3-methyl-4-nitro-isoxazol-5-yl)-ethane; (d) 2-(3-Methyl-4-nitro-isoxazol-5-yl)-1-(4-nitro-phenyl)-ethane; (e) 1-(4-Fluoro-phenyl)-2-(3-methyl-4-nitro-isoxazol-5-yl)-ethane; (f) 1 -(4-Chloro-phenyl)-2-(3-methyl-4-nitro-isoxazol-5-yl)-ethane; and (g) 3-Oxo-cyclohexane. Finally, the invention provides use of chiral sulfur-containing compounds obtainable by the above-mentioned method or chiral sulfur-containing compounds as mentioned above for the resolution of racemic mixtures of amines.
该发明提供了一种制备
含硫化合物的方法,该方法包括将包含至少一个
硫原子且至少一个孤对电子的给体化合物与受体化合物反应;其中,在胺的存在下进行反应,可选地,在能够激活至少一个
硫原子具有至少一个孤对电子的胺的存在下进行反应;反应通过形成瞬态
中间体物种进行,可选地,通过胺、可选地胺
催化剂和给体化合物之间的瞬态
中间体物种进行反应;给体化合物选自包括
亚硫酸、
亚硫酸和
亚砜酸或
亚硫酸、
亚硫酸和
亚砜酸的盐、
酯或
酰胺的群;该发明还提供了符合以下公式的
含硫化合物:其中R选自:(a) 1-(4-
硝基苯基)-3-
氧代-3-
苯基-
丙烷;(b) 2-(
3-甲基-4-硝基
异噁唑-5-基)-1-
苯基-
乙烷;(c) 1-(4-
甲氧基苯基)-2-(
3-甲基-4-硝基
异噁唑-5-基)-
乙烷;(d) 2-(
3-甲基-4-硝基
异噁唑-5-基)-1-(4-
硝基苯基)-
乙烷;(e) 1-(4-
氟苯基)-2-(
3-甲基-4-硝基
异噁唑-5-基)-
乙烷;(f) 1-(4-
氯苯基)-2-(
3-甲基-4-硝基
异噁唑-5-基)-
乙烷;和(g) 3-
氧代
环己烷。最后,该发明提供了通过上述方法获得的手性
含硫化合物或上述提到的手性
含硫化合物用于分离胺的外消旋混合物。