Chemoselectivity And Regioselectivity Ppt To Pdf
File Name: chemoselectivity and regioselectivity ppt to .zip
Hanefeld tudelft. Tonin tudelft.
In chemistry , regioselectivity is the preference of chemical bonding or breaking in one direction over all other possible directions. A specific example is a halohydrin formation reaction with 2-propenylbenzene : . Because of the preference for the formation of one product over another, the reaction is selective.
Regioselectivity, stereoselectivity, and stereospecificity
Email: ku. Asymmetric catalysis has been revolutionised by the realisation that attractive non-covalent interactions such as hydrogen bonds and ion pairs can act as powerful controllers of enantioselectivity when incorporated into appropriate small molecule chiral scaffolds. Given these tremendous advances it is surprising that there are still a relatively limited number of examples of non-covalent interactions being harnessed for control of regioselectivity or site-selectivity in catalysis, two other fundamental selectivity aspects facing the synthetic chemist. This perspective examines the progress that has been made in this area thus far using non-covalent interactions in conjunction with transition metal catalysis as well as in the context of purely organic catalysts. We hope this will highlight the great potential in this approach for designing selective catalytic reactions.
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Regioselectivity vs. chemoselectivity vs. stereoselectivity. Carbonyls as electrophiles. Salmefamol synthesis. Reagent control of selectivity: chemoselective.
Selective vs. Specific
До нее тоже доходили подобные слухи. Так, может быть, она зря поднимает панику. - Мидж. - Джабба засопел и сделал изрядный глоток. - Если бы в игрушке Стратмора завелся вирус, он бы сразу мне позвонил.