1: LDA, HMPA / multistep reaction; other bases; other carboxamides, also optical active carboxamides 2: 1 N sodium ethoxide / ethanol; tetrahydrofuran / 4 h / Ambient temperature View Scheme
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 38, # 7 p. 1824 - 1831
methylene blue in ethanol Irradiationirradiation with 150-W tungste lamp, filtered by Na2CrO4 (400g/L); Further byproducts given. Title compound not separated from byproducts;