div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Reaction of NN-dialkyldithiodianilines with β-ketoesters A new synthesis of N-alkyl-2-acyl-3-oxo-34-dihydro-14-benzothiazines src=https:reader036fdocumentorgreader036viewer202208010757506cca1a28ab0f07c4404ahtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Reaction of NN-dialkyldithiodianilines with β-ketoesters A new synthesis of N-alkyl-2-acyl-3-oxo-34-dihydro-14-benzothiazines src=https:reader036fdocumentorgreader036viewer202208010757506cca1a28ab0f07c4404ahtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Reaction of NN-dialkyldithiodianilines with β-ketoesters A new synthesis of N-alkyl-2-acyl-3-oxo-34-dihydro-14-benzothiazines src=https:reader036fdocumentorgreader036viewer202208010757506cca1a28ab0f07c4404ahtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Reaction of NN-dialkyldithiodianilines with β-ketoesters A new synthesis of N-alkyl-2-acyl-3-oxo-34-dihydro-14-benzothiazines src=https:reader036fdocumentorgreader036viewer202208010757506cca1a28ab0f07c4404ahtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: Reaction of NN-dialkyldithiodianilines with β-ketoesters A new synthesis of N-alkyl-2-acyl-3-oxo-34-dihydro-14-benzothiazines src=https:reader036fdocumentorgreader036viewer202208010757506cca1a28ab0f07c4404ahtml5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdiv