12. Draw the structure of a CsHioO compound which gives a negative 2.4-DNP test and does...
QUESTION 20 Compound "A" exhibits the following chemical properties: It gives a negative Benedict's reagent test It forms a yellow precipitate, CHI3, when treated with 12 / OH-(with heating). When compound "A" is treated with LDA/THF (-78°C), a salt is formed that reacts with benzyl bromide to form compound "B" shown below! What is the structure of compound "A"? compound B benzyl bromide 5 OY = oooo = =
Cataly st is Halpd S. An unknown compound "A" has the formula C2H6O. "A" gives a negative Tollens test and does not react with Na2Cr2O7. Draw the complete structure of unknown compound A. An unknown compound "B" has the formula CSH10. This compound was treate H2/Pt and no reaction occurred. Draw the structure of a compound "B" consi these results. 1Pentene Pt CH3-CH2-(H Irène Boateng: Attempt 1 If 3.2 grams of NO2 react with 1.4 grams of H20, what is...
Problem 16.33 (a) A compound U (CH100) gives a negative lodoform test. The IR spectrum of U shows a strong absorption peak at 1690 cm.The 'H NMR spectrum of Ugives the following: Triplet 81.2 (30) Quartet 8 3.0 (240 Multiplet 87.7 (5H (1) A compound V is an isomer of U. Compound gives a positive iodoform test; its IR spectrum shows a strong peak at 1705 cm The 'H NMR spectrum of gives the following: Singlet Singlet 8 2.0 (3H0...
Draw the structure that gives the NMR below. The compound has the molecular formula, CsH1002. Signal at 4.13 (triplet, 2H), 2.04 (singlet, 3H), 1.73 (sextet, 2H) and 1.01 (triplet, 3H). IR shows strong bands at 1710 cm-1 and 1200 cm 1 (in addition to others). Make sure to indicate (label) which hydrogen gives which signal. र PPM
Draw the structure that gives the NMR below. The compound has the molecular formula, CsH1002. Signal at 4.38 (broad singlet, 1H), 3.49 (triplet, 2H), 2.40 (triplet, 2H), 2.10 (singlet, 3H), and 1.86 (pentet, 2H). IR shows a broad band at 3350 cm and a strong band at 1710 cm (in addition to others). Make sure to indicate (label) which hydrogen gives which signal. PPM
Draw the structure that gives the NMR below. The compound has the molecular formula, C5H1002. Signal at 3.61 (singlet, 3H), 2.32 (triplet, 2H), 1.68 (sextet, 2H) and 0.99 (triplet, 3H). IR shows strong bands at 1710 cm 1 and 1200 cm 2 (in addition to others). Make sure to indicate (label) which hydrogen gives which signal. Enter Full Screen PPM
je 2.4-dinitrophenylhyd 5) You have been given an unknown that gives a positive 2,4-dinitrophen a) What does this positive 2,4 DNP test indicate? b) What subsequent tests could you run to be more specific about the un identity? c) What would you see in the subsequent tests, and what would your observa about the identity of the unknown?
4. Amyloso gives a positive iodine test and a negative test with Fehling's reagent. On the basis of the structure of amylose, explain the results of the two tests.
need help with all practice test questions 5-12
5. Suggest a structure for the compound, CHO, which gives this proton NMR spectrum. (4 points) PPM AREA 4 6. Which isomer gives the carbon-13 NMR spectrum shown? (2 points) 100 160 - 80 PPM 140120 60 40 20 7. Add the intermediate and draw all curly arrows to complete this reaction mechanism. (6 points) oo ocн, ОСН 8. Draw a major product of each of the following reactions. (3 points each)....
Draw a Lewis structure for a compound with molecular formula C4H11N in which three of the carbon atoms are bonded to the nitrogen atom. What is the geometry of the nitrogen atom in this compound? Does this compound exhibit a molecular dipole moment? If so, indicate the direction of the dipole moment.