
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...
A compound gives a positive test with Brady's reagent, but a negative test with Tollens' reagent. It is therefore: Group of answer choices an aldehyde a ketone neither an aldehyde nor a ketone
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
If your unknown compound is water soluble but does not change the pH of the water, has a peak at 1718 reciprocal centimeters, and tested positive for the 2,4-DNP test but negative for the Tollen's test, what derivative should be made for the compound? 3‚5-dinitrobenzoate derivative 2‚4-dinitrophenylhydrazone (2‚4-DNP) derivative benzamide derivative anilide (amide using aniline) derivative
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.