Lin Yongcheng, Lin Yuanhua, Wu Xiongyu, et al. The Synthesis of Ethyl 2 Nitromethyl 4 Carboxylate and Its Condensation Reaction with Acrylamide[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1996,35(6):7-10.
Lin Yongcheng, Lin Yuanhua, Wu Xiongyu, et al. The Synthesis of Ethyl 2 Nitromethyl 4 Carboxylate and Its Condensation Reaction with Acrylamide[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1996,35(6):7-10.DOI:
The nitration of ethyl 2 bromomethylthiazole 4 carboxylate (Ⅱ) with NaNO 2 or AgNO 2 gave ethyl 2 nitromethyl 4 carboxylate (Ⅲ). It was found that Ⅲ existed in the aci nitro tautomer in DMSO d 6
and the nitro isomer of Ⅲ was nearly the only form in CDCl 3. Under the Michael reaction condition