HẠ LON H₂N-CH₂-C-OH Glycine OH O H_N-CH-CN-CHC CH₂ (1) HO-C-CH, CH₂ (3) CH-C-OH CH₂ O H₂N-CH-C-OH CH₂ Pherrylalanine HẠN H₂N-CH₂-C-OC-CH-NH₂ CH₂ (2) € OH H₂N-CH-CN CH₂ COH CH₂
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- 5-31 Draw the enantiomer, if any, for each structure. (a) COOH (b) CH, (c) СНО (d) HO CH, Br -H H- OH H- OH COOH H- -O- H- OH CH,OH(C) (D) PQ-25. Which pair of compounds are enantiomers? CI CI CI CI H- OH HO -H- H- HO- HO H- and and (A) OH Но- -- (B) CI H- CI -H- -H- CI CI ОН ОН OH ОН CI CI H- CI H- HO- H -CI (С) and НО H- H- HO- HO H- and CIFH CI CI ОН OHEleostearic acid, C18H30O2, is a rare fatty acid found in the tung oil used for finishing furniture. On ozonolysis followed by treatment with zinc, eleostearic acid furnishes one part pentanal, two parts glyoxal (OHC-CHO), and one part 9-oxononanoic acid [OHC(CH2)7CO2H]. What is the structure of eleostearic acid?
- Cyclopentanecarboxylic acid and 4-hydroxycyclohexanone have the same formula (C6H10O2), and both contain an —OH and a C=O group. How could you distinguish between them using IR spectroscopy?One of the products produced when is treated CH;CH, CH,-Č-NHCH; with NaOH is O CH3-NH2 O CH3-CH2-CH2-NH2 CH3-NH3*CI" CH;-CH, -C-NH,tion 6 of 17 > The structures of four isomers of a ketopentose are shown. OH کر کو 3 E D C 80 OH H-C-H 0=C HOLC-H HOC CH H-C-H OH A Dc $ 4 D B D D A Which of the structures are diastereomers of A? R F A DOD F4 H-C-H V OH C=0 HICIOH Но..C.....H HOLC-H HOCH H-C-H OH Which of the structures are stereoisomers of C? % 5 B T G H-C-H Es C=0 B H-C-H OH 6 C FG Y H & 7 OH H-C-H N 0=C HOLC…H HICIOH H-C-H 99 U OH D J * 8 M Which of the structures are enantiomers of C? - Ов OD A DII FB ( - 0 9 K DD FO H O < ) -O L command J F10 P A. : c F11 { [ option + ? 11 I 1 Attempt 5 F12 } 1 delete
- A common ketone starting material is shown below. Predict the major product for each reaction based on the reagents given. Ignore any inorganic byproducts. Sel ect to Dr aw CH3NH2, pH 4-5 Sel ect to Dr aw 1.NaBH4 2. Neutralizing work-uphow Could we, PreDaled the clo- Compainds! [-haxartheme CH2-G-C CH-6-SHClassify the structures as being either an enantiomer, diastereomer or diastereomer/epimer of D-glucose. Structure A: CH H- -OH Structure B: но- H- H- OH Structure C: H- он H- -H D-Glucose: OH || CH CH CH он H- он но -H H- он но он но но- H- но H- OH OH но -- H- -H H -Ç-H Structure A: OH Structure B: OH Structure C: OH
- The enantiomer of this carbohydrate is CHO Н—С—ОН Н-С—ОН CH2OH A) CHO H-C-OH но-с-н CH2OH B) CHO но-с-н но-с-н ČH2OH C) CHO но-С-н H-C-OH CH,OH D) CHO H-C-OH H-C-OH ČH2OH Flpene cf theee МacBook Aird) CH3 Joonam OCH₂CH3 H₂O₂ NaOH / CH3OH - H₂O NaOCH₂CH3 (1 eq) 2) BrCH₂CO₂CH₂CH3 3) aq NaOH (4) ag HCI/ heatTwo sugars differing in configuration at a single asymmetric carbon atom are known as epimers. D-mannose is a C-2 epimer of glucose (Structure I), while D-galactose is a C-4 epimer of glucose. Structure Il and IIl are H- -OH но- -H H OH HO H но- H HO H H -OH H- -OH HO OH H -OH H- -OH H OH HO. HO, OH II II Which of the following represents an aldopentose? OH H O HO O HO H но н HO H но- HO H HO H HO- H OH H OH H OH H OH OH HO Он of но" HO O OH он III IV These are chemical messengers that are secreted by endocrine glands and carried through the bloodstream to target tissues. prostaglandin deoxysugar glycoside hormones Which of the following is NOT correctly paired? cellulose: beta-1,4-glycosidic linkage amylose: alpha-1,4-glycosidic linkage chitosan: alpha-1,4-glycosidic linkage cellubiose: beta-1,4-glycosidic linkage