Electronic Effects on C-O-C Ether Bonds in 3-Aryloxy Derivatives of Benzisothiazole 1,1-Dioxides: Rapid Ethanolysis of 3-(4-Nitrophenoxy)-1,2-Benzisothiazole 1,1-Dioxide, (1), to Give 3-Ethoxy-1,2-Benzisothiazole 1,1-Dioxide, (2)