2-HYDRAZINO-4-ARYLPYRIMIDINE-6-CARBOXYLIC ACIDS AS INTERMEDIATE PRODUCTS FOR REACTIVE INDICATOR PAPER

摘要

the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0: product: 2 to guide u0440u0430u0437u0438u043du043e - 4 - u0444u0435u043du0438u043bu043fu0438u0440u0438u043cu0438u0434u0438u043d - 6 - u043au0430u0440u0431u043eu043du043eu0432u0430u00a0 acid resource CiiHioN402, up 75%, u0442.u043fu043b. 214 - 216 & deg;. 2 - u0433u0438u0434u0440u0430u0437u0438u043du043e - 4 - (p - u043cu0435u0442u043eu043au0441u0438u0444u0435 neal) pyrimidine - 6 - u043au0430u0440u0431u0440u043du043eu0432u0430u00a0 acid resource Ci2Hi2lM403, up 60%, u0442.u043fu043b. 213 - 217 & deg;. agent 1: 2 - chlorine - 6 - 4 - u0444u0435u043du0438u043b ziano di - or 4 - (l - u043cu0435u0442u043eu043au0441u0438u0444u0435u043du0438u043b) pyrimidine. agent 2: hydrazine - hydrate. u0443u0441u043bu043eu0432u0438u00a0 reaction: u043au0438u043fu00a0u0447u0435u043du0438u0435 in 4% by solution con.