Triethylborane → HCID 86741582, compound

Participants

Reaction Steps

Copoly(N-methyl-N-vinylacetamide/maleic anhydride) was prepared as follows. About 5 g of maleic anhydride free of maleic acid was dissolved in about 32 g of tetrahydrofuran. This solution was placed in a flask fitted with a dropping funnel, mechanical stirrer and nitrogen inlet. The dropping funnel was charged with about 4 g of N-methylvinylacetamide dissolved in about 13 g of tetrahydrofuran and 0.25 ml of 90% t-butyl hydroperoxide. The temperature of the reaction was adjusted to about 30° C., and the N-methyl-N-vinylacetamide solution was added dropwise over a period of about 4 hours. About 0.5 ml of a 1 Molar solution of triethylborane in hexane was added to the reaction flask at the beginning of the reaction run, and every hour thereafter. At the end of about 7 hours reaction time, the product polymer was precipitated by addition of about 50 ml of petroleum ether. Ths slurry was filtered and washed with diethylether and dried.

Provenance & Evidence