Which of the following chiral compounds is(are) R enantiomer(s)? 1) I. II III но, CI. Н,с...
3) Which of the following compounds is chiral? A) H Н-С-н н B) H HO C-OH Н C) CH3 HO-C-H Cl D) Br Н-С-ОН н E) C Br- C-C Br 4) In the L- isomer of a Fischer projection of a monosaccharide, the -OH group furthest from the carbonyl is written A) on the left of the top chiral carbon B) on the right of the top chiral carbon C) on the left of the middle chiral carbon D) on...
14. Which of the following chiral compounds is(are) S enantiomer(s)? I. OH Hac H3C OH H3C ?CI H3C HC HCH2C HCH2C A) I B) II C) III D) I and II E) I and III "ci
15.4
о ко, н* ? heat -сон ОН НО,С -co,Н There is no reaction under these conditions or the correct product is not listed here. Gve the major product of the following reaction. H2NNH, OH ? heat O HO OH There is no reaction under these conditions or the correct product is not listed here. Give the major product of the following reaction. o H2NNH, OH ? heat OH -COH O Br Но,с со,н There is no reaction under these...
1. Examine the structural formulas of the three biological molecules A, B, and C shown below. (NOTE: The zigzag lines and polygons represent carbons with C-H bonds omitted!) н. сн, Н,с. сн C H OH H,с н HO C-H Ш сн, H2C-o H C OH П I HC-0 H -C OH но Hас—о CH-он C В Circle the polar sites on each of these molecules a. b. Which of these molecules is/are soluble in water? Explain briefly.
NA afte. 9 Select the most stable conformation for trans-1-tert-butyl-3-methylcyclohexane. н D A 10. Which of the following compounds are optically active [will rotate plane polarized light (is chiral)]? CIL CI CI CI C/. CI A CI CI В D С 11. Rank absorption of the indicated bonds in decreasing (highest to lowest) wavenumber. II н x III a) III> II>I b) I> II III OH c) II>I> IlI d) III I> II но, но—н 12. How many stereocenters are...
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
6.6 Indicate whether the asymmetric atom in each of the following compounds has the R or S configuration (a) O, C Он (b) он (c) Me PrN CI Et HC NH CH, н CH: но i-Pr alanine OH malic acid
24 Ma 3. 11) In the reaction of Ch with ethane and UV light, which of the following reactions would be a propagation eventis 74 w I) C+CH3-CH3-CH3-CH2-C+ H- II) Cl+CH3-CH3-CH3-H2c HC III) CI+CH3-H2CCH3-CH2-c IV)Cl2+CH3-H2C CH3-CH2-C1 + Cl V) Cl2 + UV light CI+C ph A) reactions I and V B) reactions II, III and IV Thi op (IA, 2A. C) reactions I and IV D) reactions II and IV eoaional Usion of in becket are oation is avaab E)...
4.23,4.24 & 4.26 thank you
156 CHAPTER 4 Introduction to Organic Compounds Practice Problems 4.21 4.23 Draw the condensed structural formula for each of the following alkyl groups: a. propyl b. methyl 4.24 Give the correct name for each of the following substituents: a. CH CH - b. CH3CH,CHCH- c. I- 4.25 Draw the skeletal structure for each of the following compounds: a. 2,3-dimethylpentane b. 2-ethyl-1,4-dimethylcyclohexane c. 1,2-dichlorohexane 4.26 Draw the skeletal structure for each of the following compounds: a....
Predict the product(s) using the same alkene reactant for the following reactions: 2. н, (a) Pt/C D, (b) Pt/C Cl, (c) CH,Cl, Br, (d) Н.о Cl, (e) CH,OH HI (0 DBr (g) НВr (h) нолу ноно (0) 1. Hg". THF-H,O 2. NaBH/NaOH 1. В, Н, ТHF (k) 2. H,O/NaOH кMпо, H,о (I) cold 1. OsO, (m) 2. NaHSO, 1. KMnO/OH/heat (n) 2. Н.О" 1. 0/CH,CI, (o) 2. Zn/H,O 1. O, (p) 2. H.о/он