Acetyl bromide → 1-Methylbut-1-en-3-onyltin tribromide

HRID 399291Notes

Reaction equation

HRID 399291 reaction equation
[Sn:1]([Br:3])[Br:2].[C:4]([CH2:7][C:8](=[O:10])[CH3:9])(=O)[CH3:5].C([Br:14])(=O)C>C(OCC)C>[CH3:5][C:4]([Sn:1]([Br:14])([Br:3])[Br:2])=[CH:7][C:8](=[O:10])[CH3:9]

Participants

5

Reactant 3

HCID 10482Acetyl bromideHCID 31261AcetylacetoneHCID 66224Stannous bromide

Product 1

HCID 857666421-Methylbut-1-en-3-onyltin tribromideYield 96.3%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

The procedure was analogous to Example 6. 22.4 g (0.08 mol) of tin(II) bromide and 8.0 g (0.08 mol) of acetylacetone were reacted with 9.8 g (0.08 mol) of acetyl bromide in 200 ml of diethyl ether and the reaction solution was concentrated to give 34.0 g (96% of theory) of 1-methylbut-1-en-3-onyltin tribromide (Br3 Sn--C(CH3)=CH--CO--CH3) melting at 110°-112° C.

Workup

  1. concentrationthe reaction solution was concentrated

Sources & evidence

ORD record
ord-3696ea016b614653ac81920771a13279
Source dataset
uspto-grants-1998_10
Patent number
US05817851

Reaction notes

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