2,2'-Bipyridine → HCID 22173653, compound
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
Reactant 3
Product 1
Reagents, catalysts & solvents 1
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 Samples were withdrawn at certain time periods, and from the composition data obtained from NMR measurements of these samples and from GPC measurement of the molecular weights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- customSamples were withdrawn at certain time periods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
- customwith Tg =52° C.
Sources & evidence
- ORD record
- ord-8d207aef9891468e86dcc934c8a90bf8
- Source dataset
- uspto-grants-1998_09
- Patent number
- US05807937
Reaction notes
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