Triethylamine → AcOH AcOAc
Reaction equation
ClC1C=CC=[C:4]2[C:5]([O:7][C:8](=[O:9])[C:3]=12)=[O:6].C(N(CC)CC)C>CN(C=O)C>[C:5]([OH:7])(=[O:6])[CH3:4].[C:5]([O:7][C:8](=[O:9])[CH3:3])(=[O:6])[CH3:4]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 50 °C
Procedure
The procedure of Example 1 was repeated except that there was employed 3.0 parts of 4,4'-diphenyletherdithiol, 4.68 parts of 3-chlorophthalic anhydride, 2.85 parts of triethylamine and 38 parts of anhydrous DMF. The mixture was stirred at 50°C. for 3 hours to give a product which after acetic acid/acetic anhydride treatment consisted of a 93% yield of product. Recrystallization of this material from toluene/acetic anhydride gave a product in 87% yield, mp 224°-228°C. Based on the method of preparation the product was a thioetherdianhydride of the formula ##SPC14##
Sources & evidence
- ORD record
- ord-fec0b37c666049e284a1940506d7d29c
- Source dataset
- uspto-grants-1976_01
- Patent number
- US03933862
Reaction notes
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