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An efficient and high-yield one-pot synthesis of bis(oxazoline)s
被引:6
|作者:
Hui, XP
[1
]
Huang, JI
[1
]
Chiou, SJ
[1
]
Gau, HM
[1
]
机构:
[1] Natl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan
关键词:
bis(oxazoline);
one-pot synthesis;
beta-amino alcohol;
dicarboxy dichloride;
D O I:
10.1002/jccs.200600053
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
An efficient and mild one-pot synthesis of bis(oxazoline) (BOX) ligands is developed from reactions of dicarboxy dichlorides with beta-amino alcohols in the presence of 11.0 equiv. NEt3 followed by the addition of 3.6 equiv. methanesulfonyl chloride (MsCl). Nine different BOX ligands were prepared in excellent yields of >= 80%. Advantages of this improved synthesis are mild reaction conditions, short total reaction time of 9 h, and high isolated yields.
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页码:421 / 427
页数:7
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