Phthalic anhydride. II. The melting point of pure phthalic anhydride. the system: phthalic anhydride—phthalic acid

1920 ◽  
Vol 189 (1) ◽  
pp. 103-104
Author(s):  
K.P. Monroe
Keyword(s):  
Melting Point ◽  
Phthalic Anhydride ◽  
Phthalic Acid

Réaction du sulfure de bore avec quelques composés difonctionnels

1972 ◽  
Vol 50 (11) ◽  
pp. 1675-1677 ◽  
Author(s):  
S. Jerumanis ◽  
P. A. Begin ◽  
D. Vu Cong
Keyword(s):  
Salicylic Acid ◽  
Succinic Acid ◽  
Phthalic Anhydride ◽  
Maleic Acid ◽  
Phthalic Acid ◽  
Quantitative Yield

Catechol reacts with boron sulfide to give 2,2′-o-phenylenedioxybis-(1,3,2-benzodioxaborole) (1) while only the hydroxyl function of salicylic acid reacts to give a quantitative yield of tris(o-carboxylphenoxy)borane (3). Phthalic acid is dehydrated to phthalic anhydride, but succinic acid and maleic acid have been found inert to the action of the boron sulfide.

scholarly journals Synthesis of Novel Symmetrical and Unsymmetrical o-Phthalic Acid Diamides

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Padam Praveen Kumar ◽  
Yervala Dathu Reddy ◽  
Chittireddy Venkata Ramana Reddy ◽  
Bhoomireddy Rama Devi ◽  
Pramod Kumar Dubey
Keyword(s):  
Acetic Acid ◽  
Phthalic Anhydride ◽  
Phthalic Acid ◽  
Secondary Amines ◽  
Benzoic Acids ◽  
The Novel ◽  
Coupling Reagent

Phthalic anhydride was treated with secondary amines in acetic acid yielding 2-(diethyl (or) 4-alkylpiperazine or morpholine-1-carbonyl) benzoic acids. The latter were reacted, again, with secondary amines and arylamines by using the coupling reagent HATU and Et3N as a base in DMF giving the novel symmetrical o-phthalic acid diamides [o-R1R1NCOC6H4CONR1R1], unsymmetrical o-phthalic acid diamides [o-R1R1NCOC6H4CONR1R2], and primary amidic-secondary amidic containing unsymmetrical o-phthalic acid diamides [o-R1R1NCOC6H4CONHAr], respectively.

The Determination of Phthalic Anhydride in Crude Phthalic Acid.

1918 ◽  
Vol 10 (8) ◽  
pp. 596-598
Author(s):  
Charles R. Downs ◽  
Charles G. Stupp
Keyword(s):  
Phthalic Anhydride ◽  
Phthalic Acid

The diamagnetic susceptibilities of phthalic acid and phthalic anhydride

1949 ◽  
Vol 30 (2) ◽  
Author(s):  
Bawa Kartar Singh ◽  
Kanwar Maghar Singh Manhas ◽  
Mahan Singh ◽  
Vimla Puri
Keyword(s):  
Phthalic Anhydride ◽  
Phthalic Acid
Sign in / Sign up

Export Citation Format

Share Document