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Which of the following would be has the highest priority according to the sequence rules? a. —SH c. —CH 3 b. —NH 2 d. —OH
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- Identify the best reagents to complete the following reaction. CI N.Which substituent has the highest priority? B. Br D. C. O a. A O b.D Oc C Od. The molecule is not chiral. De.BReagents Available g. CO, HCI, CUCI/AICI3 h. CH3CH2CH2COCI, AICI3 i. BrCH2CH2Br, Он j. CH3CH2CI, AICI3 k. RCO3H I. H3O* a. CH2=CHCH,CI, AICI3 b. CH2B12, OH c. CH3CH2COCI, AICI3 d. H2, Pt e. NBS, CCI4 f. K* tBuO Using conditions from the table, show how you would synthesize this compound from catechol (1,2-benzenediol). Select reagents from the table in the order that you wish to use them, i.e. aced; do not include punctuation or spaces If more than one route exists, choose the shorter one; in no case will a synthesis require more than 5 steps.
- Reagents a. C6H5CHO b. NaOH, ethanol h. BrCH2CH=CH2 i. Na* OEt, ethanol j. Br2, H* k. K* t-BuO c. Pyrrolidine, cat. H* d. H2C=CHCN e. H3O* f. I. CH2(CO2ET)2 -CH2CH2CN LDA m. heat g. ELOC(=0)CO2ET Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda).CH3 Ar NH (35) CO,H CF3- CH37. Determine the missing product. а. НСI + Н20 > НзО+ + b. F- + H20 → HF + с. Н2SO4 + H2О > HSO4 + d. HSO4 + H2O → H3O+ + е. NO3 + НаО > ОН + f. H2РО4 + HаО -> Он + g. H2PO4 + H2O → H3O+ +
- Order the following in increasing priority A. -C, -CH, -OL B. -CH3, -CH2OH, -CH2CH3 C. -C≡CH, -CH゠CH2, -CH゠O26. In accordance to the Cahn-Ingold-Prelog sequence rules, arrange -CHO, -CH₂OH, -OH and -COOH in order of decreasing priority. A. –CHO, -CH2OH, -OH, -COOH B.-OH, -COOH, -CHO, -CH₂2OH C.–COOH, -CHO, -CH2OH, -OH D. –OH, -CHO, -COOH, -CH2OH 27. 2-aminoethanol preferentially adopts the gauche conformation and not the anti conformation because of A. dipole interaction B. steric interaction C. hydrogen bonding D. B and C 28. The measured dipole moment of trans-1,3-dibromocyclobutane is 1.10 D. Which of the following statements about trans-1,3-dibromocyclobutane is false? Br Br trans-1,3-dibromocyclobutane A. It exists entirely in the planar conformation. B. It exists entirely in the nonplanar conformation. C. It exists as a mixture of planar and nonplanar conformations. D. Choices B and CThe sample that has no effect on the plane polarised light is a solution of (2S,3R)-diaminebutane (2S,3S)-diaminebutane (2R,3R)-diaminebutane An equimolar mixture of a & b a. b. C. d.