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本文测定了N(,N′)-(二)对甲苯磺酰基大环醚双内酯(附图11～6),N,N′-二羧甲基大环醚双内酯和大环胺双内酰胺(图18～2),4′-丹磺酰氨基苯并冠醚(图113～16)等十八个新冠醚的~1H,~(13)C NMR谱并进行了归属。作者发现,随着冠醚环的增大,冠1～6的次甲基b和冠8～11的次甲基a、b、c的~1H化学位移向低场移动,当冠环增大至21～24员时,这种偏移趋于极限。溶剂对8～11化合物的~1H NMR影响表明,次甲基a、b、c的~1H位移随溶剂的极性增大而增大,次序为:CD_3COOD>PY-d_5≥D_2O>>CD_3OD>CD_3CD_2OD>DMF-d_6>DMSO-d_6。
In this paper, the determination of N (, N ’) - (di) p-toluenesulfonyl macrocyclic ether dilactones (Figures 11 to 6), N, N’-dicarboxymethyl macrocyclic ether bislactones and macrocyclic amines The 1H, 13C NMR spectra of 18 new crown ethers such as dilactam (Figure 18-2) and 4’-dansyl aminobenzoethers (Figures 113-16) were assigned and assigned. The authors found that the ~ 1H chemical shifts of methine b in crown 1-6 and methine a, b, c of crown 8-11 moved toward the lower field as crown rings increased, To 21 to 24 members, this shift tends to the limit. The ~ 1H NMR effect of solvents on 8-11 compounds showed that ~ 1H displacement of methine groups a, b and c increased with the increase of solvent polarity. The order was: CD_3COOD> PY-d_5≥D_2O >> CD_3OD> CD_3CD_2OD> DMF-d_6> DMSO-d_6.