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Synthesis of 4-(3-methylpyrazolyl-1)naphthalic anhydride

โœ Scribed by V. P. Perevalov; L. I. Baryshnenkova; K. S. Tsoi; A. K. Kh. Karim

Book ID
104781660
Publisher
Springer US
Year
1992
Tongue
English
Weight
70 KB
Volume
28
Category
Article
ISSN
0009-3122

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โœฆ Synopsis

Heating 4-nitronaphthalic anhydride in an excess of 3(5)-methylpyrazole gives only 4-(3-methyO~yrazolyl-1)naphthalic anhydride, which is converted by butylamine into the known N-butylimide of 4-(3-methylpyrazolyl-1)naphthalic acid.

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T h e s y n t h e s i s o f [ 1 4 C -c a r b o x y l l l 1 8 -n a p h t h a l i c a n h ya n h y d r i d e o f h i h s p e c i f i c a c t i v i t y ( 3 1 . 8 mCi/mmol) i s r e p o r t e d . G r i g n a r d r e a g e n t , 8-bromo-1-naphthylmagnesium i o d i d e , t h a t was p r e p a r e d f r o m