Method for producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate
AssigneeKuraray Co., Ltd.
InventorsKatsuji Ujita, Junko Sato, Takashi Fukumoto
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Abstract
The present invention provides a method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate industrially advantageously in a high yield. More particularly, the present invention provides a method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate represented by the following formula (IV): which comprises reacting 2-isopropenyl-5-methyl-4-hexen-1-ol with an organic sulfonyl halide in the presence of a basic substance to give a sulfonate compound represented by the following formula (III): wherein R is a hydrocarbon group, and reacting the obtained sulfonate compound with senecionic acid in the presence of a basic substance.
Claims4
A method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate represented by the following formula (IV):
- which comprises reacting 2-isopropenyl-5-methyl-4-hexen-1-ol represented by the following formula (I):
- with an organic sulfonyl halide represented by the following formula (II):
- RSO2X (II)
- wherein R is a hydrocarbon group and X is a halogen atom,
- in the presence of a basic substance to give a sulfonate compound represented by the following formula (III):
- wherein R is as defined above, and reacting the obtained sulfonate compound with senecionic acid in the presence of a basic substance.
A method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate represented by the following formula (IV):
- which comprises reacting a sulfonate compound represented by the following formula (III):
- wherein R is a hydrocarbon group, with senecionic acid in the presence of a basic substance.
(canceled)
2-Isopropenyl-5-methyl-4-hexen-1-yl methanesulfonate represented by the following formula (III-I):
Dependencies are inferred from the claim text.