I have never heard of a super leaving group before. I tried to look deeper into it and all I could find is Triflate anion but still do not understand the concept
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I have never heard of a super leaving group before. I tried to look deeper into it and all I could find is Triflate anion but still do not understand the concept
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- | CH2C6H5 CH3 + BH3 + H2O2/OH + CrO3, pyridine → A A + CH3-Li + H*/H2O → B1. Simple sugars are defined as polyhydroxy aldehydes/ketones. All carbons except one have an OH group. The remaining carbon has a double bond to oxygen, making it an aldehyde or ketone. For example, the Fisher projection of glucose looks like this: C H- H- -ОН НО -ОН -HO- CH2OH Because a simple sugar has both a carbonyl carbon and built-in nucleophiles, a reaction can occur within the molecule itself to create the hemi-acetal form of the sugar. Propose a mechanism for this reaction when it occurs in an aqueous solution. C -- CH2OH он в CH2OH HO- H H НО H. ОН Н and ОН Н HO- он Он а OH H H- ОН OH H ОН ČH2OHComplete the reactions given below. a) 1) Hg (OAc), /THE/H2O 2) Na BHu /OH b) heat >? CS CamScanner ile tarandı
- Draw a structural formula for 2-methylbutanoic acid. O • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. 8 CH4 #[ ] در ? ChemDoodlePlease answer all of it. If not, please skip. Draw the structure of a branched hydrocarbon that also contains at least one atom with trigonal planar geometry. Draw the structure of an aromatic hydrocarbon containing two halogens. Draw the structure of a molecule containing an aliphatic primary amine and a carboxyl group. Draw the structure of an acyclic molecule containing a primary and a secondary alcohol group. Draw the structure of an achiral tertiary alcoholOH ELOH, H* CO2H Draw the structure of the product of this Fischer esterification reaction. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. C P aste opy
- 2. Consider the following organic molecules A-H. Many of them are natural products isolated from Nature. Please answer the following questions by writing the Letter pertaining to each molecule next to the question. -N- H;C "CO,H N. Но CH2 ČH3 B strychnine (a plant alkaloid) hirsutic acid A nepetalactone (essence of cutnip) (a fimgul metabolito) H- H. I CH,0 E helminthosporal (a imgal toxu) D progesterone F cantharidin (a progestin hommone) (am insect vesicant) Br NO2 Br CI G untenine C (E)-1,6-dibromo-2,7-dichloro-3,7-dimethyloct-3-ene (fom red algae) (4 sponge metabolite)5. Ribose's structure is ОН HO ОН ОН a) Draw using the arrow formalism the reaction of linear ribose to make a 5-membered ring. b) What is the name of the resulting functional group? c) Given that reaction of alcohols (such as RCH2OH) with carbonyls (such as HCO-R') to create this functional group is typically not thermodynamically favored, why does most ribose in water exist as a 5-membered ring? A few word answer is fine. d) AG°for this reaction is about - 5 kJ/mol. Assuming that you start with a 1 mM solution of ribose in water, what is the approximate concentration at equilibrium of (i) the linear form? (ii) The cyclic form? (A good answer should be correct within 20%, e.g. it is fine to approximate 9 mM as 10 mM, but it is not okay to approximate 0.1 mM as 1 mM.) e) This reaction creates a new stereocenter. Please indicate it with a *. f) Consider the starting point for synthesis of purines like ATP, which is PRPP (pheseboribosylevOrhesehate) НО НО LOLOH HO ОН HO OH Pyrophosphate…Determine the products of each carboxylic acid reaction. a. CH3-CH2-CH;-CH-C-OH + CH, — CH,— он H;SO, но- CH2 b. CH2 `CH2 Heat C-OH
- atoms. Please give 1UPAC name of the Molecele. Molecule 1. Draw an acyl halide that conttains at least three carbon S houldn-t be overly Complicated.Draw an example of a terminal alkyne.Determine the products of each carboxylic acid reaction. a. CH3-CH2-CH2-CH,-C-OH + H,SO, CH, — CH,— он HO. b. CH2 heat CH2 C-OH CH2