5. Chloroamphenicol is a potent antibiotic whose stereoconfiguration is "R, R." Which of the following molecules...
Which of the following molecules is not an intermediate in this reaction? Laquelle des molécules suivantes n'est pas un intermédiaire dans la réaction suivante? CH3NH2 → product рН 4-5 ОН нон нон, N N н
30. Which of the choices below is the enantiomer of D-glucose? сно сно нон HO-EH сно на-он D-glucose Іно-Ен н -он но-Ен EH,OH сно но н-он но -н нон Сн,он но-Ен на-он но -н но-Ен н -он нон CHO но -н н-он но-Ен нон снен CHOH Сн,он 3. Which of the following structures is an a-anomer? Сн,он —о, он o ноноон нонс осн он — о оно сн, он он онон он он он он тон КСн,он y CH, OH...
3. Assign R or S configuration to the chirality centers of the following molecules. ҫн, сн, b) но н H Br COOH c) H CH COOH CH,CH н. сн,Cн он HO d) H Br H Br h) CH CH,о, g) HO Н СООН CH hway.com
4. Circle out of the following which is not a reducing sugar? А. НОНС с. НОНС ОН. OCH3 H3CO НО ОН ОН ОН ОН D. В. НОН,С НОНС ОН ОН HO HO OCH ОН ОН OCH3 5. Provide the product of the following reaction Н. А. Н. -он Br2 , НО но -H pH = 6 НО -Н Но -H CH2OH
4. Assign R or S configuration to each chiral center in each of the following molecules (A-D). Which are enantiomers and which are diastereoisomer? Hint: redraw the molecules if it makes it easier to visualize or use a modeling kit. H H A В CH Br Hас, Br 'CHs Нo Hас H он Br Br D CHз Hас Н. "CHз но Он CH3
assign r or s to the charity centers of the following molecules step by step plz explain 3. Assign R or S configuration to the chirality centers of the following molecules, CH, CH, C- COOH b) нок СООН, Не НА CH-CH, „W CH-CH, Ал ОН W OCH В. HOCH, COOH HzĆ CH,
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...
5. Assign R or S configuration to each indicated chirality center (carbon A and B) in the following molecule (vitamin C). Which of the following assignments is correct B но но OH но H se A a. carbon A (S); carbon B (R) b. carbon A (R); carbon B (R) c. carbon A (R); carbon B (S) d. carbon A (S); carbon B (S) 6. Which of the following statement is NOT correct? a Constitutional isomers are compounds whose atoms...
Consider the following reaction, and choose from the choices below which best represents the first step of the mechanism. НО ОН of н*(cat.) Select one: о а. с нари GILA OH O b. н* Х н* O d. " O e. ОН
please answer ALL. will give a thumbs up. thank you Which of the following molecules can be oxidized to a carboxylic acid with Na2Cr2O7 in aqueous H2SO4? Select all that apply. ОН ОН Н LOH А В С D E Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. ОН CF3 NH2 B E F Acetal formation is an equilibrium reaction that doesn't favor the formation of the acetal...