A total synthes's of the marine natural product aldingenin C In the laboratory resuited in a significant revision of its proposed structure. The synthesis involved the conversion of compound 1 to compound 2, which is an Intramo lecular SN2-type process. Ths substitution reaction involves a very poor leaving group, but the reaction is nevertheless favorable, because it involves opening of the strained three-membered ring (called an epoxide). The relief of ring strain can be a powerful driving force for reactions. Draw a mechanism for this reaction. Include lone pairs and formal charge in CH2.
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Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
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Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
Chemistry, 23.06.2019 02:00
What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?
Answers: 3
A total synthes's of the marine natural product aldingenin C In the laboratory resuited in a signifi...
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