Tetraalkylstannanes synthesis

A slight modification of the above description is necessary if this reaction is to be used for the synthesis of other alkylfluoro-phosphoranes (CH3CH2PF4, CH2=CHPF4, n-CH3CH2CH2PF4). Because all other tetraalkylstannanes are not transferable in a vacuum system at 25°, they can be syringed into the reaction bulb before attachment to the vacuum lines. Care to use dry samples and equipment must be observed, however, since the presence of even small amounts of water will lead to formation of phosphoryl fluoride and silicon tetrafluoride. 

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