2,2'-Bipyridine → HCID 22173653, compound

HRID 2180214Notes

Reaction equation

N1C=CC=CC=1C1C=CC=CN=1.[CH2:13]([O:15][C:16](=[O:21])[C:17](Br)(C)[CH3:18])C.[C:22]([O:27][CH3:28])(=[O:26])[C:23]([CH3:25])=[CH2:24]>C(OC)(=O)C=C>[C:16]([O:15][CH3:13])(=[O:21])[CH:17]=[CH2:18].[C:22]([O:27][CH3:28])(=[O:26])[C:23]([CH3:25])=[CH2:24]

Participants

Conditions

Temperature: 90 °C

Procedure

0.107 g of CuBr, 0.349 g of 2,2′-bipyridyl and 0.109 ml of ethyl-2-bromoisobutyrate was added to a mixture of methyl acrylate (5 ml) and methyl methacrylate (10 ml), and the reaction mixture was heated to 90° C. Methyl acrylate (20 ml) was added to the reaction mixture at a rate of addition of 0.1 ml/min. Samples were withdrawn at certain time periods, and from the composition data obtained from NMR measurements of these samples and from GPC measurement of the molecular weights relative to polystyrene standards, the compositional gradient along the chain of the final copolymer was calculated (FIGS. 6A-B). The final polymer (3.15 g) was purified by reprecipitation from methanol/THF. DSC measurements of the final copolymer show a single g1ass transition with Tg=52° C.

Workup

customSamples were withdrawn at certain time periods
customThe final polymer (3.15 g) was purified by reprecipitation from methanol/THF

Sources & evidence

ORD record: ord-916fdba485984664a4f240500dd30227
Source dataset: uspto-grants-2005_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06887962B2

Reaction notes

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