一种新型开链聚醚肟的合成与表征

SYNTHESIS AND CHARACTERIZATION OF A NEW OPEN-CHAIN POLYETHER WITH TWO OXIMIDO GROUPS AT THE ENDS OF THE CHAIN

用二醛1,7—=(2′—甲酰基苯基)—4—苄基—1,7—二氧杂—4—氮杂庚烷,以 NaAc 为中和剂,乙醇为溶剂和盐酸羟胺(NH_2OH·HCl)反应制得了开链聚醚1,7—=(2′—肟甲基苯基)—4—苄基—1,7—二氧杂—4—氮杂庚烷(L)。用元素分析、红外光谱、核磁共振氢谱及质谱等手段对它进行了表征,并较详细地讨论了基质谱的裂解机理.

By the reaction of the dialdehyde respectively with NH_2OH·HCI and NaAc in ethanol,a new open-chain polyether is obtained with two oximido groups at the end of the chain. The dialdehyde is 1,7-bis(2'-formy lphenyl)-4—benzyl—1,7—dioxa—4—aza heptane(A). The open-chain polyether is 1,7—bis(2'—oximido methylphenyl)—4—benyl—1,7—dioxa—4 —azaheptane(L).The structure of L was characterized by IR,HNMR,MS and elemental analy- sis.The mass spectrum data for L has been discussed in detail.