… generation and use of a masked α-acyl cation in aromatic substitution reactions; Ag+ induced reactions of 3-(bromomethyl)-5, 6-dihydro-1, 4, 2-dioxazine derivatives

S Shatzmiller, S Bercovici

文献索引：Shatzmiller, Shimon; Bercovici, Sorin Journal of the Chemical Society, Chemical Communications, 1990 , # 4 p. 327 - 328

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被引用次数: 3

摘要

The Ag+ induced aromatic substitution reactions of 3-( 1 -bromomethyl)-5,6-dihydro-l,4,2-dioxazine derivatives via an a-acyl cation equivalent are described. ... Nitrones and oxime ethers have been shown to have dual properties in supporting negative or positive charge at the position next to the C=N group. Such compounds can be efficiently metallated on the a-carbon atom to form reagents (a-acyl anion equivalents) that are useful synthetic inter- mediates in ...