Water → 1-(diphenylmethyl)-N-ethyl-3-azetidinemethanamine

HRID 868119Notes

Reaction equation

HRID 868119 reaction equation
[H-].[Al+3].[Li+].[H-].[H-].[H-].[C:7]1([CH:13]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[N:14]2[CH2:17][CH:16]([C:18]([NH:20][CH2:21][CH3:22])=O)[CH2:15]2)[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.O.[OH-].[Na+]>O1CCCC1>[C:7]1([CH:13]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[N:14]2[CH2:17][CH:16]([CH2:18][NH:20][CH2:21][CH3:22])[CH2:15]2)[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=1

Participants

6

Reactant 4

HCID 962Water3×HCID 14798Sodium HydroxideHCID 13772850HCID 13772850, compoundHCID 21226445Aluminium lithium hydride

Product 1

HCID 99938381-(diphenylmethyl)-N-ethyl-3-azetidinemethanamineYield 85.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of 3.2 g (85 mmole) of lithium aluminum hydride in 50 ml of dry tetrahydrofuran was added dropwise, a solution of 8.5 g (28.0 mmole) of 1-(diphenylmethyl)-N-ethyl-3-azetidinecarboxamide in 50 ml of dry tetrahydrofuran. After the addition was complete, the reaction was refluxed for two hours, cooled to room temperature, and decomposed by the successive addition of 3.4 ml of water, 3.4 ml of 15% aqueous sodium hydroxide and 10.2 ml of water, titrating the final water addition to give a granular precipitate. The inorganic precipitate was removed by filtration, washed with tetrahydrofuran and evaporated in vacuo to give 6.7 g of 1-(diphenylmethyl)-N-ethyl-3-azetidinemethanamine as a heavy syrup. This was used without further purification.

Workup

  1. additionwas added dropwise
  2. additionAfter the addition
  3. temperaturethe reaction was refluxed for two hours
  4. customto give a granular precipitate
  5. customThe inorganic precipitate was removed by filtration
  6. washwashed with tetrahydrofuran
  7. customevaporated in vacuo

Sources & evidence

ORD record
ord-9480f46adfef47c880b778b4f8657e2f
Source dataset
uspto-grants-1988_10
Patent number
US04777175

Reaction notes

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