Process for the production of sulfonic esters
View Patent ↗Sulfonic acid ester derivatives represented by the general formula (4) or (5) are produced by reacting an amino alcohol derivative represented by the general formula (1) or (2) with an organic sulfonyl halide represented by the general formula (3), in a mixed solvent composed of an aprotic organic solvent and water in the presence of a non-water-prohibiting inorganic base. This procedure can be carried out in a simple, easy, safe and economical manner while reducing the load on the environment. Wherein n represents an integer of 0 to 5, A represents a phenyl group, which may be substituted, R represents a methanesulfonyl, ethanesulfonyl, p-toluenesulfonyl or p-nitrobenzenesulfonyl group and X represents a chloride, bromine or iodine atom.
1. A method of producing a sulfonic acid ester derivative represented by the general formula (4):
wherein n is 3, A represents a phenyl group, which may be substituted, B and B′ are the same or different and each represents a phenyl group, which may be substituted, a straight or branched alkyl group containing 1 to 4 carbon atoms or a hydrogen atom, D represents a straight or branched alkyl group containing 1 to 8 carbon atoms, which may be substituted, or a hydrogen atom, and R represents a methanesulfonyl, ethanesulfonyl, p-toluenesulfonyl or p-nitrobenzenesulfonyl group,
which comprises reacting an amino alcohol derivative represented by the general formula (1):
wherein n, A, B, B′ and D are as defined above, with an organic sulfonyl halide represented by the general formula (3):
R—X
wherein R is as defined above and X represents a chlorine, bromine or iodine atom,
in a mixed solvent composed of an aprotic organic solvent and water in the presence of a non-water-prohibiting inorganic base.
2. The production method according to claim 1 ,
wherein the aprotic organic solvent phase and the aqueous phase containing the non-water-prohibiting inorganic base form a two-phase system.
3. The production method according to claim 1 ,
wherein the amino alcohol derivative represented by the general formula (1) is in an optically active form and
the sulfonic acid ester derivative represented by the general formula (4) is in an optically active form.
4. The production method according to claim 1 ,
wherein the aprotic organic solvent is toluene.
5. The production method according to claim 1 ,
wherein the non-water-prohibiting inorganic base comprises at least one species selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, lithium hydrogen carbonate, sodium hydrogen carbonate and potassium hydrogen carbonate.
6. The production method according to claim 5 ,
wherein the non-water-prohibiting inorganic base comprises at least one species selected from among sodium hydroxide and potassium hydroxide.
7. The production method according to claim 1 ,
wherein the organic sulfonyl halide represented by the general formula (3) is methanesulfonyl chloride.
8. The production method according to claim 2 ,
wherein the amino alcohol derivative represented by the general formula (1) is in an optically active form and
the sulfonic acid ester derivative represented by the general formula (4) is in an optically active form.
9. The production method according to claim 8 ,
wherein the aprotic organic solvent is toluene.
10. The production method according to claim 2 ,
wherein the aprotic organic solvent is toluene.
11. The production method according to claim 2 ,
wherein the non-water-prohibiting inorganic base comprises at least one species selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, lithium hydrogen carbonate, sodium hydrogen carbonate and potassium hydrogen carbonate.
12. The production method according to claim 3 ,
wherein the non-water-prohibiting inorganic base comprises at least one species selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, lithium hydrogen carbonate, sodium hydrogen carbonate and potassium hydrogen carbonate.
13. The production method according to claim 4 ,
wherein the non-water-prohibiting inorganic base comprises at least one species selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, lithium hydrogen carbonate, sodium hydrogen carbonate and potassium hydrogen carbonate.
14. The production method according to claim 2 ,
wherein the organic sulfonyl halide represented by the general formula (3) is methanesulfonyl chloride.
15. The production method according to claim 3 ,
wherein the organic sulfonyl halide represented by the general formula (3) is methanesulfonyl chloride.
16. The production method according to claim 4 ,
wherein the organic sulfonyl halide represented by the general formula (3) is methanesulfonyl chloride.
17. The production method according to claim 5 ,
wherein the organic sulfonyl halide represented by the general formula (3) is methanesulfonyl chloride.
18. The production method according to claim 6 ,
wherein the organic sulfonyl halide represented by the general formula (3) is methanesulfonyl chloride.