Ethyl 2-bromo-2-methylpropanoate

Ethyl 2-bromo-2-methylpropanoate, e78 Ethyl butyl ketone, hi6 Ethyl chloride, cl02 ... 

C,H Br02 Ethyl 2-bromo-2-methylpropanoate 303.2 8.55 0.77044E+02 -0.40784E+00 0.60000E-03 303-333... 

TABLE 2. ATRP of methyl methacrylate catalysed by various ruthenium alkoxycarbene complexes and initiated by ethyl 2-bromo-2-methylpropanoate at 85 °C. ... 

Figure 1. Time dependence of ln([M]o/[M]) at 85 °C where [M]o and [M] are the MMA concentration at times 0 and t. Reaction conditions [MMA]o [initiator]o [Ru]o = 800 2 1 (initiator ethyl 2-bromo-2-methylpropanoate catalyst, RuCl2(=CHPh)(P(cC5H9)3)2 temperature,...

RuCl2(=CHPh)(P(cC5H9)3)2 fcpp = 23.15 x 10 s ) was somewhat more active than the PCy3 analogue (/Capp = 21.05 x 10 s ) for the polymerisation of methyl methacrylate. Effective initiators were ethyl 2 bromo-2-methylpropanoate, ethyl 2-bromopropanoate, (1-bromoethyl)benzene and (l-chloroethyl)benzene, whereas tetrachloromethane proved to be... 

Furthermore, in the early stages of the reaction, halogen exchange took place between RuCl2(=CHPh)L2 complexes 4 and 6 (L = PCys or A-heterocyclic carbene), the initiator (ethyl 2-bromo-2-methylpropanoate) and/or the carbon-halogen termini of the dormant species (Scheme 9 and Figures 7). 

Methylcyclohexanone as well as cycloheptanone were reacted with ethyl 2-bromo-2-methylpropanoate and magnesium in diethyl ether. Yields were as high as 50% which was remarkable as a previous attempt in that same year [6], to react that same halo-ester with zinc in the presence of 3-methylcyclohexanone had failed, most likely due to steric hindrance ... 

Ethyl 2-bromo-3-methylbutanoate Ethyl 2-bromo-2-methylpropanoate Ethyl 3-bromo-2-oxopropanoate Ethyl 2-bromopentanoate... 

The carbonyl stretching frequency indicates that the compound is an ester. The 3H and 2H resonances correspond to an ethyl ester. The 6H singlet corresponds to two methyl groups on a carbon with no hydrogens. This carbon is bonded to a bromine atom and carbonyl carbon. The compound is ethyl 2-bromo-2-methylpropanoate. 

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