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举例 :可输入Filippa Pettersson 或者 Cancer Res. 75(6) , 1102-12, (2015) 或者10.1002/anie.201600521

Helvetica Chimica Acta

Eine einfache Methode zur Herstellung von Benzoxazolen

Z Seha, CD Weis

文献索引：Seha, Zdenek; Weis, Claus D Helvetica Chimica Acta, 1980 , vol. 63, # 2 p. 413 - 419

全文：HTML全文

被引用次数: 13

摘要

Summary The preparation of benzoxazoles by a facile one-pot reaction is reported. The reaction of carboxylic acids with 2-chloro-N-methyl-A*-pyrrolinium chloride in an excess of N- methyl-2-pyrrolidone afforded carboxylic acid chlorides which were converted subsequently to their 2-hydroxyanilides by addition of 2-aminophenols. Cyclization of the 2-hydroxy- anilides at elevated temperatures furnished the benzoxazoles in high yield and purity.

未登录结构式

~%

5-methylsulfonyl-2-[4-(5-methylsulfonyl-1,3-benzoxazol-2-yl)naphthalen-1-yl]-1,3-benzoxazole结构式

5-methylsulfony...

1,4-萘二甲酸结构式

1,4-萘二甲酸

~%

5-methylsulfonyl-2-[4-(5-methylsulfonyl-1,3-benzoxazol-2-yl)naphthalen-1-yl]-1,3-benzoxazole结构式

5-methylsulfony...

naphthalene-1,4-dicarbonyl dichloride结构式

naphthalene-1,4...

~%

5-methylsulfonyl-2-[4-(5-methylsulfonyl-1,3-benzoxazol-2-yl)naphthalen-1-yl]-1,3-benzoxazole结构式

5-methylsulfony...

噻吩-2,5-二羧酸结构式

噻吩-2,5-二羧酸

~%

荧光增白剂EBF结构式

荧光增白剂EBF

2,5-噻吩二甲酰氯结构式

2,5-噻吩二甲酰氯

~%

荧光增白剂EBF结构式

荧光增白剂EBF

未登录结构式

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(E)-1,2-双(4-(苯并[d]恶唑-2-基)苯基)乙烯结构式

(E)-1,2-双(4-(苯并...

4,4'-二苯乙烯二羧酸结构式

4,4'-二苯乙烯二羧酸

~%

(E)-1,2-双(4-(苯并[d]恶唑-2-基)苯基)乙烯结构式

(E)-1,2-双(4-(苯并...

4,4'-stilbenedicarbonyl dichloride结构式

4,4'-stilbenedi...

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(E)-1,2-双(4-(苯并[d]恶唑-2-基)苯基)乙烯结构式

(E)-1,2-双(4-(苯并...

2,6-吡啶二羧酸结构式

2,6-吡啶二羧酸

~%

2-N,6-N-bis(2-hydroxyphenyl)pyridine-2,6-dicarboxamide结构式

2-N,6-N-bis(2-h...

1,4-萘二甲酸结构式

1,4-萘二甲酸

~%

2,2'-(naphthalene-1,4-diyl)bis[5-(ethylsulphonyl)benzoxazole]结构式

2,2'-(naphthale...

naphthalene-1,4-dicarbonyl dichloride结构式

naphthalene-1,4...

~%

2,2'-(naphthalene-1,4-diyl)bis[5-(ethylsulphonyl)benzoxazole]结构式

2,2'-(naphthale...

2-(2-hydroxy-3-(piperidin-1-yl)propyl)isoindoline-1,3-dione结构式

2-(2-hydroxy-3-...

~%

荧光增白剂KCB结构式

荧光增白剂KCB

1,4-萘二甲酸结构式

1,4-萘二甲酸

~%

荧光增白剂KCB结构式

荧光增白剂KCB

naphthalene-1,4-dicarbonyl dichloride结构式

naphthalene-1,4...

~%

荧光增白剂KCB结构式

荧光增白剂KCB

N1,N4-bis(2-hydroxyphenyl)terephthalamide结构式

N1,N4-bis(2-hyd...

~%

2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole结构式

2-[4-(1,3-benzo...

对苯二甲酸(PTA)结构式

对苯二甲酸(PTA)

~%

2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole结构式

2-[4-(1,3-benzo...

对苯二甲酰氯结构式

对苯二甲酰氯

~%

2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole结构式

2-[4-(1,3-benzo...