摘要
脱氢醋酸(1)与氨反应生成2,6-二甲基-4-羟基吡啶(2)。IguChi等曾用纸层析法定性地研究了这反应的过程。为进一步了解(1)与氨反应的历程及影响反应的因素,我们用HPLC研究了在不同反应条件下得到的中间体和产物,研究了相互转变关系,并进行了分离和鉴定。初步提出了该反应的可能历程。
In this work, the reaction of dehydroacetic acid (1) with aqueous ammoniahas been further studied by means of HPLC. In this reaction lutidone (2), lutidonecarboxylic acid (4) and 2,6-dimethyl-4-aminopyridine (6) have been separated or prepared.DHA-imide (3) (3-iminoethyl-4-hydroxy-6-methyl-2-pyrone) is the intermediate which gives various compounds under different conditions. The mechanism of this reaction is discussed.The structures of compounds have beeen characterized by IR, 1HNMR and MS spectra.
作者
陈伟兴
冯骏材
傅和亮
沙坚
张林
Chen Weixing;Feng Juncai;Fu Heliang;Sha Jian;Zhang Lin(Department of Chemistry,Nanjing University,Nanjing)
出处
《高等学校化学学报》
SCIE
EI
CAS
1988年第9期969-971,共3页
Chemical Journal of Chinese Universities
