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133712-56-8

3-(DIMETHYLAMINO)-1-(4-FLUOROPHENYL)PROPAN-1-OL synthesis

3synthesis methods
-

Yield:133712-56-8 94%

Reaction Conditions:

with methanol;sodium tetrahydroborate;sodium hydroxide at 20; pH=12 - 13; for 1 h;Cooling with ice;

Steps:

6 Example 6: Preparation of 3-(dimethylamino)-1-(4-fluorobenzene)-1-propanol

General procedure: Example 2
Preparation of 3-(dimethylamino)-1-phenyl-1-propanol
3-dimethylamino-1-phenyl-1-acetone hydrochloride (10.0 g, 50 mmol) was dissolved in methanol (50 mL).
After pH was adjusted to pH=12-13 with sodium hydroxide solution (5%), sodium borohydride (2.3 g, 60 mmol) was added in portions under ice bath.
After addition, the reaction mixture was stirred at room temperature for 1 h.
The reaction liquid was concentrated, added with water (100 mL), extracted with ethyl acetate, washed with water, dried and concentrated to give 7.9 g of 3-(dimethylamino)-1-phenyl-1-propanol as colorless liquid, yield 96%. According to the procedures in Example 2, 31 3-(dimethylamino)-1-(4-fluorobenzene)-1-acetone was reacted with 33 sodium borohydride to give 34 3-(dimethylamino)-1-(4-fluorobenzene)-1-propanol as colorless liquid, yield 94%.

References:

US2017/369466,2017,A1 Location in patent:Paragraph 0066; 0074