glucosamine tetra-O-acetate → 2-nitro-4-(2',4',6'-triiodophenyl)-benzoyl-1,3,4,6-tetra-O-acetyl-D-glucosamine
反応式
[C:1]([O:4][CH:5]1[O:19][C@H:18]([CH2:20][O:21][C:22](=[O:24])[CH3:23])[C@@H:13]([O:14][C:15](=[O:17])[CH3:16])[C@H:8]([O:9][C:10](=[O:12])[CH3:11])[C@H:6]1[NH2:7])(=[O:3])[CH3:2].[I:25][C:26]1[CH:31]=[C:30]([I:32])[CH:29]=[C:28]([I:33])[C:27]=1[C:34]1[CH:39]=[CH:38][C:37]([C:40](Cl)=[O:41])=[C:36]([N+:43]([O-:45])=[O:44])[CH:35]=1>>[N+:43]([C:36]1[CH:35]=[C:34]([C:27]2[C:28]([I:33])=[CH:29][C:30]([I:32])=[CH:31][C:26]=2[I:25])[CH:39]=[CH:38][C:37]=1[C:40]([C:5]1([O:19][C@H:18]([CH2:20][O:21][C:22](=[O:24])[CH3:23])[C@@H:13]([O:14][C:15](=[O:17])[CH3:16])[C@H:8]([O:9][C:10](=[O:12])[CH3:11])[C@H:6]1[NH2:7])[O:4][C:1](=[O:3])[CH3:2])=[O:41])([O-:45])=[O:44]参加物
実験手順
4-iodotoluene is reacted with picryl chloride in the presence of copper bronze at 215° C. to yield 2′,4′,6′-trinitro-4-methylbiphenyl (1). C 7 H 7 I + C 6 H 2 Cl N 3 O 6 → Δ Cu C 13 H 9 I 3 N 3 O 6 2′,4′,6′-trinitro-4-methylbiphenyl (1) is reacted with stannous chloride and hydrochloric acid to yield 2′,4′,6′-triamino-4-methylbiphenyl (2). C 13 H 9 N 3 O 6 → H Cl Sn Cl 2 C 13 H 15 N 3 2′,4′,6′-triamino-4-methylbiphenyl (2) is reacted with sodium nitrite and hydrochloric acid to convert the amino groups to diazonium groups. The diazonium groups react with potassium iodide to yield 2′,4′,6′-triiodo-4-methylbiphenyl (3). C 13 H 15 N 3 → H Cl Na N O 2 → K I C 13 H 9 I 3 Aromatic nitration of 2′,4′,6′-triiodo-4-methylbiphenyl (3) is performed with nitric acid and sulfuric acid to yield a mixture of 2′,4′,6′-triiodo-2-nitro-4-methylbiphenyl (4) and 2′,4′,6′-triiodo-3-nitro-4-methylbiphenyl (5). The products are separated using column chromatography. C 13 H 9 I 3 → H 2 S O 4 H N O 3 C 13 H 8 I 3 N O 2 The methyl group of 2′,4′,6′-triiodo-3-nitro-4-methylbiphenyl (5) is oxidized by potassium permanganate to yield 2′,4′,6′-triiodo-3-nitrobiphenyl-4-carboxylic acid (6). C 13 H 8 I 3 N O 2 → K Mn O 4 C 13 H 6 I 3 N O 4 2′,4′,6′-triiodo-3-nitrobiphenyl-4-carboxylic acid (6) is reacted with thionyl chloride to yield 2′,4′,6′-triiodo-3-nitrobiphenyl-4-carbonyl chloride (7). C 13 H 6 I 3 N O 4 → S O Cl 2 C 13 H 5 Cl I 3 N O 3 The hydroxyl groups of D-Glucosamine (8) are protected by reaction with acetic anhydride in the presence of pyridine to yield 1,3,4,6-tetra-O-acetyl-D-glucosamine (9). C 6 H 13 N O 5 → C 5 H 5 N C 4 H 6 O 3 C 14 H 21 N O 9 1,3,4,6-tetra-O-acetyl-D-glucosamine (9) is reacted with 2′,4′,6′-triiodo-3-nitrobiphenyl-4-carbonyl chloride (7) to yield 2-nitro-4-(2′,4′,6′-triiodophenyl)-benzoyl-1,3,4,6-tetra-O-acetyl-D-glucosamine (10). C14H21NO9+C13H5ClI3NO3→C27H25I3N2O12 2-nitro-4-(2′,4′,6′-triiodophenyl)-benzoyl-1,3,4,6-tetra-O-acetyl-D-glucosamine (10) is treated with stannous chloride in the presence of hydrochloric acid to yield 2-amino-4-(2′,4′,6′-triiodophenyl)-benzoyl-D-glucosamine (11). C 27 H 25 I 3 N 2 O 12 → Sn Cl 2 , H Cl C 19 H 19 I 3 N 2 O 6
出典と根拠
- ORDレコード
- ord-01065f0f91454ed3b28214612f8599d1
- 出典データセット
- uspto-grants-2005_08
- 特許番号
- US06923950B2
反応ノート
読み込み中…