Terephthalonitrile di-N-oxide and isophthalonitrile di-N-oxide were synthesized from the corresponding hydroxamic chlorides by dehydrochlorination with triethylamine. Their chemical properties and the polycycloadditions with diolefins were examined. The polymers obtained were amorphous and their molecular weights were not so high. The thermal gravimetric analyses of them showed that the polymers were stable up to 300–350°C in air.
Preparation of Novel Di-isoxazolines Using Bis(nitrile oxide) 1,3-Dipolar Cycloaddition Methodology
作者:Mohammad Ali Bigdeli、Azim Ziyaei Halimehjani、Mohammad Mohammadipour、Parishad Sagharichi
DOI:10.1002/jhet.856
日期:2012.7
A general method for the synthesis of novel di‐isoxazolines through a 1,3‐dipolar cycloaddition reaction of in situ prepared bis (nitrileoxides) of terephthaldehyde and various olefins is described. The reactions are regiospecific and give high yields of products.