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Unexpected Synthesis of 2,2'-[1-(4-Methoxyphenoxy)propane-2,2-diyl]bis(5-methoxy-3-methylbenzofuran) 被引量：2

Unexpected Synthesis of 2, 2'-[1-(4-Methoxyphenoxy)propane- 2, 2-diyl]bis(5-methoxy-3-methylbenzofuran)
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摘要 A new bisbenzofuran analogue Ⅶ was achieved unexpectedly in one step procedure from 1-（4-methoxyphenoxy）acetone Ⅰ by using Amberlyst 15 resin as catalyst in excellent yield. The structure was elucidated by spectroscopy analysis including ^1H-NMR, ^13C-NMR, DEPT, ESI-MS, element analysis. A new bisbenzofuran analogue Ⅶ was achieved unexpectedly in one step procedure from 1-（4-methoxyphenoxy）acetone Ⅰ by using Amberlyst 15 resin as catalyst in excellent yield. The structure was elucidated by spectroscopy analysis including ^1H-NMR, ^13C-NMR, DEPT, ESI-MS, element analysis.
作者 Yu Dong SHEN Hai Qiang WU Lin Kun AN Zhi Shu HUANG Xian Zhang BU Lian Quan GU
机构地区 School of Chemistry and Chemical Engineering School of Pharmaceutical Sciences
出处 《Chinese Chemical Letters》 SCIE CAS CSCD 2005年第12期1581-1583,共3页 中国化学快报（英文版）
基金 supported by the National Natural Science Foundation of China(20472117,20272085) the Natural Science Foundation of Guangdong Province(031594).
关键词 BENZOFURAN Amberlyst 15 resin CYCLIZATION Benzofuran,Amberlyst 15 resin,cyclization
分类号 O622.4 [理学—有机化学]
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  • 10[10]Selected data for compound Ⅶ. Yellow oil (EtOAc/petroleum, 1/20), yield 80%.MS(ESI): 487 [M+H]+. Anal. Calcd. for C30H30O6: C, 74.06; H, 6.21; Found: C, 74.01; H,6.37. 1H NMR(300MHz, CDCl3, TMS, δ ppm): 1.88 (s, 6H, 26-CH3 and 29-CH3), 1.99 (s,3H, 27-CH3), 3.72 (s, 3H, 30-CH3), 3.83 (s, 6H, 25-CH3 and 28-CH3), 4.54 (s, 2H, 18-CH2),6.74-6.86 (m, 8H, 4-CH, 7-CH, 13-CH, 16-CH, 20-CH, 21-CH, 23-CH, 24-CH), 7.29 (dd,2H, J=0.8, 8.5Hz, 6-CH, 15-CH). 13C NMR(75MHz, CDCl3, TMS, δ ppm): 8.2 (26-C,29-C), 22.2 (27-C), 44.0 (9-C), 55.7 (30-C), 56.0 (25-C, 28-C), 73.1 (18-C), 101.6 (4-C,13-C), 111.3 (7-C, 16-C), 111.6 (2-C, 11-C), 112.2 (6-C, 15-C), 114.4 (21-C, 23-C), 115.8(20-C, 24-C), 131.3 (3-C, 12-C), 147.9 (8-C, 17-C), 153.0 (19-C), 153.7 (1-C, 10-C), 153.8(22-C), 155.5 (5-C, 14-C).

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Chinese Chemical Letters
2005年 第12期

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