2) using pyridine as raw material and pyridine N-oxide et al as medium products ;3) 4-pyridyl-pyridinium dichloride (dibromide) as medium products.
以吡啶为原料,经氧化、硝化、铁-酸还原或催化加氢合4-氨基吡啶及其他合4-氨基吡啶的路线;
2) using pyridine as raw material and pyridine N-oxide et al as medium products ;3) 4-pyridyl-pyridinium dichloride (dibromide) as medium products.
以吡啶为原料,经氧化、硝化、铁-酸还原或催化加氢合4-氨基吡啶及其他合4-氨基吡啶的路线;
声明:以上例句、词性分类均由互联网资源自动生,部分未经过人工审核,其表亦不代表本软件的观点;若发现问题,欢迎向我们指正。