摘要：

Formation of the anion of 2-(1,3-dithian-2-yl)indoles was shown to be possible when the indole nitrogen is protected by a p-methoxyphenylsulfonyl group. In contrast to the corresponding N-phenylsulfonylindole dithiane 1, the anion of dithiane 2 reacts efficiently with electrophiles.The influence of the indole protective group on the metallation of 2-bis(ethylthio)-methyl-1-(phenylsulfonyl)indole (14) and the corresponding sulfoxide 24 with n-butyllithium is also reported.

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