2206-65-7Relevant articles and documents
Effect of the cross-linker on the general performance and temperature dependent behaviour of a molecularly imprinted polymer catalyst of a Diels-Alder reaction
Henschel, Henning,Kirsch, Nicole,Hedin-Dahlstroem, Jimmy,Whitcombe, Michael J.,Wikman, Susanne,Nicholls, Ian A.
, p. 199 - 205 (2012/07/13)
Here we present a series of molecularly imprinted polymers capable of catalysing the Diels-Alder reaction between benzyl 1,3-butadienylcarbamate (1) and N,N-dimethyl acrylamide (2). The polymer systems studied here demonstrated an unusual cross-linker and temperature dependent behaviour, namely that polymer catalysis of the Diels-Alder reaction was lower at elevated temperature, in contrast to the solution reaction. Furthermore, not only was the catalytic activity significantly influenced by the choice of cross-linker, but in a similar fashion also the extent of the temperature effect, indicating a close relationship between catalysis and the observed inhibition. Molecular dynamics simulations of both the polymer systems studied were used to provide insight into the molecular background of transition state stabilisation, and differences in properties of the systems based on different cross-linkers.
Organometallic Compounds in Organic Synthesis. Part 14. Tricarbonyliron as Lateral Control Group in the Selective Alkaline Hydrolysis of some Cyclohexa-1,3-diene Carboxylic Esters
Bandara, B. M. Ratnayake,Birch, Arthur J.,Raverty, Warwick D.
, p. 1763 - 1770 (2007/10/02)
Alkaline hydrolyses of a number of methoxycarbonyl derivatives of cyclohexa-1,3-diene-Fe(CO)3 have been used as indices of steric and electronic effects on reactivities of the ester groups.A β-CO2Me or a 1-CO2Me group is resistant to hydrolysis for steric
