Answer (A) intramolecular proton transfer
If proton transfer with in the molecule is intramolecular proton transfer, while proton transfer takes place between the two molecules intermolecular proton transfer.
How does the following proton transfer take place? OH | |_ _ IR| N、 | H RN-R HH ZI | R H O A intramolecular proton tra...
4. Suggest mechanisms for these transformations. O OH NH2 H + N R HN HN 'N HH HNN LI
Br DMSO H20 N-Br OH N-H dilute H2SO4 OH h sN1 Nucleophilic substitution. a Proton transfer e J Electrophilic addition b Lewis acid/base i SN2 Nucleophilic substitution f*E1 Elimination c -Radical chain substitution j Electrophilic aromatic substitution g FE2 Elimination d Radical chain addition Identify the mechanism by which each of the actions above proceeds from a the mechanisms listed. Use the letters a j for your answers.
N(CH3)3 OH 1. heat 95% 5% (E & Z) он 2. H2N a - Proton transfer dSN2 Nucleophilic substitution b- Lewis acid/base e-Electrophilic aromatic substitution c=E2 elimination f= g Nucleophilic subs at carbonyl(acyl Xfer) h-Conjugate (nucleophilic) addn r-carbonyl nucleophilic addn Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a i for your answers. 1. 2.
N(CH3)3 OH 1. heat 95% 5% (E & Z) он 2. H2N a -...
21. How many of the following molecules are polar covalent compound? coco: o doc negative charge cor - H₂O a) Four b) Zeroc) One d) Two e) Three 22. Ir a solid line represents a covalent bond and a dotted line represents intermolecular atùraction, which of these choices shows a hydrogen bond? a) - N H -0. b) H-H c) O...H-C- d) CH-F- Question 23-26: Indicate the major types of attractive force --- a). ionic bond, b) dipole- dipole attraction,...
kindly answer all
Consider the following molecules A-O to answer questions 1-11: OH Molecule A Molecule B Molecule C H2N Molecule D Molecule E Molecule F OH Molecule G Molecule H Molecule I ū Molecule J Molecule K Molecule L HN Molecule M Molecule N Molecule o To open this im B. (0.5 mark) Yes or No: Does molecule A have one or more) asymmetrics carbon atoms that acts as stereocenters? Submit A Tries 0/1 9. (1 mark) Which molecule,...
How would you convert an unsaturated fatty acid into a saturated fatty acid A. KMnO4, "OH, heat B. "OH,H,O, heat; then H,0 C. Hz, Ni, pressure D. H,0,H,O, heat 26. What structure has the following proton NMR spectrum? 'H NMR: doublet, 6.6 ppm, 2H doublet, 7.8 ppm, 2H broad singlet, 4.2 ppm, 2H singlet, 2.1 ppm, 3H HUN 27. Which of the following is the correct synthesis of the compound shown? CH, Br o Na Na o CH,Br B. T...
20.14
ULUS because they result in the transfer of an wety np. from one heterontom to another is prepared by the acetylation of morphine, an analyesic compound Isolated from the opium poppy. Both OH groups of morphine are readily acetylated with ceris whydride to form the diester present in heroin. HO OT o HF HOW Problem 20.14 morphine heroin minyarides react like acid chlorides with the nucleophiles described in Chapter 17. draw the products formed when each of the following...
11 Explain how IR spectroscopy could be used to following two compounds, by comparing: distinguish between the The C-O Stretch The C-O Bend The Aromatic Region C-H Stretch The two molecules will produce an identical IR spectrum al b) c) d) e) 12 What must take place in order for infrared absorption to occur? a) Electrons must be promoted from their ground state orbital to a higher energy orbital. b) Bending of covalent bonds causing the nuclei of the atoms...
1. According to collision theory, which of the following factors does affect whether or not a reaction will take place? a) number of valence electrons b) molecular mass c) oxidation number d) collision orientation e) percent composition f) more than one response is correct (i.e. does affect reaction) g) no correct response 2. In which type of reaction are all the reactants and all the products elements? a) combustion reaction b) synthesis reaction c) single-replacement reaction d) double replacement reaction...
22-28 Consider the following nucleotide. Sodobno bilololle H ON on | 0-P-0-CH2 O N N CNH, bring on Ch o osion obi D DO D olabo OH OH MODE a. What is the name of the nucleotide? b. Would this nucleotide be found in both DNA and RNA, only in DNA, or only in RNA? c. What is the name for the type of bond that connects the phosphate and sugar subunits? d. What is the name for the type...