Marine Natural Products – Bioactivity & Chemical Ecology allow slideshare to load……… Marine Natural Products – Bioactivity & Chemical Ecology [Kenneth Boyd, Martina Maria Burtscher & Robbie Mutton] from University of the Highlands and Islands Share this:
Tag: REACTION MECHANISMS
Coenzyme Q10
Coenzyme Q10 2-[(2E,6E,10E,14E,18E,22E,26E,30E,34E)-3,7,11,15,19,23,27,31,35,39-decamethyltetraconta-2,6,10,14,18,22,26,30,34,38-decaenyl]-5, 6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione Coenzyme Q10 (ubiquinone-10, CoQ10, CoQ, Q10 or simply Q) is aubiquinone containing 10 isoprenoid units. First discovered in 1957 by Crane et al. [1], its chemical structure was determined by Karl Folkers [2], who later won the Priestley medal from the American Chemical Society. This oil-soluble, vitamin-like micronutrient forms part of the electron transport chain which, in the process of… Continue reading Coenzyme Q10
Luche reduction
Luche reduction is the selective organic reduction of ketones to alcohols with lanthanoid chlorides such as cerium(III chloride andsodium borohydride. The Luche reduction can be conducted chemoselectively toward ketone in the presence of aldehyde or toward α,β-unsaturated ketone in the presence of non-conjugated ketone.1,2,,3 An enone forms an allyl alcohol in a 1,2-addition. Competing conjugate 1,4-addition is suppressed. The solvent is an alcohol such asmethanol or ethanol. The selectivity can be explained in terms of HSAB theory: carbonyl groups require hard nucleophiles for 1,2-addition. The… Continue reading Luche reduction
COLOURFUL MECHANISMS-ACADEMIC HELP
Epoxidation OZONOLYSIS oxidations DIELS ALDER RXN We noted earlier that addition reactions of alkenes often exhibited STEREOSPEFICITY, in that the reagent elements in some cases added syn and in other cases anti to the the plane of the double bond. Both reactants in the Diels-Alder reaction may demonstrate stereoisomerism, and when they do it is… Continue reading COLOURFUL MECHANISMS-ACADEMIC HELP