An unusual reaction of 2-amino-4-chlorophenol with arylphosphorothioic dichlorides

被引：0
|
作者：
Reddy, PM [1 ]
Reddy, BS [1 ]
Reddy, CD [1 ]
机构：
[1] Sri Venkateswara Univ, Dept Chem, Tirupati 517502, Andhra Pradesh, India
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 1997年 / 36卷 / 11期
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D O I：
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中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Formation of novel 8', 8 "-dichloro-2-(2-amino-4-chlorophenoxy)-2, 2'-(3H, 3'H)-spirobis [1,3,2-benzoxazaphosphole] 5 from the reaction of 2-amino-4-chlorophenol 1 with various arylphosphorothioic dichlorides 2a-f via the unexpected elimination of hydrogen sulfide and aryloxy moieties is observed. Interestingly P-31 NMR spectrum of the reaction product exhibited two seperate signals suggesting its presence as two isomers (5-5') in equilibrium in solution. Electron impact mass spectrum exhibited M+, (M-C6H5CINO)(+), (M-C12H9Cl2N2O2)(+) and (M-C12H8Cl2N2O2P)(+) as major fragmentation ions suggesting the presence of three units of 2-amino-4-chlorophenol in 5 and its stepwise loss.
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页码：1053 / 1055
页数：3
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