反应 #1178468

ord-8a366174f1ef4939bfdc9cf244f2fffa

反应方程式

[Li]
Lithium
CCOC(=O)C=C1CN(C(c2ccccc2)c2ccccc2)C1
(1-benzhydrylazetidin-3-ylidene)acetic acid ethyl ester
O
water
[Na+].[OH-]
sodium hydroxide
O
water
OCCC1CN(C(c2ccccc2)c2ccccc2)C1
title compound
收率 76.0%
OCCC1CN(C(c2ccccc2)c2ccccc2)C1
1-Benzhydryl-3-(2-hydroxyethyl)azetidine
收率 76.0%

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    workup.STIRRINGThe reaction liquor was stirred for two hours at the same temperature
  2. 2
    温度while cooling the reaction liquor in ice
  3. 3
    干燥The resulting mixture was dried over anhydrous sodium sulfate
  4. 4
    其他The insoluble was separated by filtration
  5. 5
    浓缩the mother liquor was concentrated under reduced pressure
  6. 6
    其他The obtained residue was purified by flash chromatography (Flash Chromatography System from Biotage AB, column size: 40M, ethyl acetate:n-hexane=1:1 to ethyl acetate)

实验过程

Lithium aluminumhydride (889 mg, 23.4 mmol) was suspended in tetrahydrofuran (50 mL), and under a nitrogen stream, a tetrahydrofuran (30 mL) solution of (1-benzhydrylazetidin-3-ylidene)acetic acid ethyl ester (2.40 g, 7.81 mmol) was added dropwise over 20 minutes at 0° C. with stirring. The reaction liquor was stirred for two hours at the same temperature, and then while cooling the reaction liquor in ice, water (889 μl), 1 N sodium hydroxide (889 μl) and water (8.57 mL) were added in this order. The resulting mixture was dried over anhydrous sodium sulfate. The insoluble was separated by filtration, and the mother liquor was concentrated under reduced pressure. The obtained residue was purified by flash chromatography (Flash Chromatography System from Biotage AB, column size: 40M, ethyl acetate:n-hexane=1:1 to ethyl acetate), to obtain the title compound (1.58 g, 76%) as an oily matter.

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US08129366B2uspto-grants-2012_03