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Generation of [75Se]dimethyl selenide and the synthesis of [75Se]dimethyleselenonium compounds

โœ Scribed by Stephen J. Foster; Richard J. Kraus; Howard E. Ganther

Publisher
John Wiley and Sons
Year
1985
Tongue
French
Weight
381 KB
Volume
22
Category
Article
ISSN
0022-2135

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โœฆ Synopsis

The synthesls of varlous 17%e selenonlum compounds of blo-(S . Ac. 3 2 mCl/mnol), prepared from comnerclally avallable [7gSe]selenocystlne (Foster S . J . and Ganther H.E. -Anal. Blochem. -137: 205-9 to glve [74Se dlmethyl selenlde. whlch was trapped In nltromethane solutlon, with varlous alkyl halldes to glve dlmethylselenonlum compounds of the type (CH3)2Set-R. where R = -CH~COZH, -CH2C02C2Hs1 -( CH2)2C02H and -( C H ~) ~C O ~C ~H S . [7%e]Hethyl-~elenomethlonlneselenonlum lodlde was synthesized from [75Se]selenomethlonlne and methyl lodlde In a mixture of formlc and acetlc aclds at 25'C. [75Se]Selenocystlne was reduced and methylated to glve [75Se]-methylselenocystelne, whlch was slowly converted t o [75Se]dlmethyl-selenocystelneselenonlum lodlde by the same reactlon. loglcal Interest I s descrlbed. [ 1 5Se]Trlmethylselenonlum lodlde at -18OC. [7 3 SelDlmethyl selenlde was reacted, In nltromethane 1984.) was decomposed thermally. In a stream of nltrogen.

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