2,2'-Bipyridine → HCID 22173653, compound

HRID 1862555Notes

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 Samples were withdrawn at certain time periods, and from the composition data obtained from NMR measurements of these samples and from GPC measurement of the molecular weights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 glass 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customSamples were withdrawn at certain time periods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-d517930c82064da0a8d9eed97c2ace35
Source dataset: uspto-grants-2003_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06538091B1

Reaction notes

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