ORGANIC CHEMISTRY-ACCESS
6th Edition
ISBN: 9781260475586
Author: SMITH
Publisher: MCG
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Chapter 12A, Problem 21P
Propose a molecular formula for rose oxide, a rose-scented compound isolated from roses and geraniums, which contains the elements of
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Chapter 12A Solutions
ORGANIC CHEMISTRY-ACCESS
Ch. 12A.1 - What is the mass of the molecular ion formed from...Ch. 12A.1 - Prob. 3PCh. 12A.2 - Prob. 6PCh. 12A.2 - What molecular ions would you expect for the...Ch. 12A.3 - The mass spectrum of 2,3-dimethylpentane also...Ch. 12A.3 - The base peak in the mass spectrum of 2, 2,...Ch. 12A - Problem-13.24 The mass spectrum of the following...Ch. 12A - Prob. 16PCh. 12A - Which compound gives a molecular ion at m/z= 122,...Ch. 12A - Propose two molecular formulas for each molecular...
Ch. 12A - Propose four possible structures for a hydrocarbon...Ch. 12A - Problem-13.29 What is the molecular formula for...Ch. 12A - Problem-13.30 Propose a molecular formula for rose...Ch. 12A - 13.31 Match each structure to its mass spectrum
Ch. 12A - 13.32 Propose two possible structures for a...
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- Compound F, a hydrocarbon with M+=96 in its mass spectrum, undergoes reaction with HBr to yield compound G. Propose structures for F and G, whose 13C NMR spectral data are given below. Compound F Broadband-decoupled 13C NMR: 27.6, 29.3, 32.2, 132.4 DEPT-90: 132.4 DEPT-135: positive peak at 132.4 ; negative peaks at 27.6, 29.3, 32.2 Compound G Broadband-decoupled 13C NMR: 25.1, 27.7, 39.9, 56.0 DEPT-90: 56.0 DEPT-135: positive peak at 56.0 ; negative peaks at 25.1, 27.7, 39.9arrow_forward2,3-Dimethylbutane and 2,2-dimethylbutane have the same molecular ion in the mass spectrum, but only one of these isomers gives a significant fragment at m/z = 57. (a) Which isomer shows an intense peak at m/z = 57? (b) Propose a structure for the ion that gives rise to this peak. (c) The base peak in the mass spectrum of the other isomer occurs at m/z = 43. What ion gives rise to this peak?arrow_forwardA compound has a molecular ion in its mass spectrum at m / z = 58, and a strong absorption band at its IR at 1720. What would be the structure?arrow_forward
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- A compound contains only C, H and O. The mass spectrum shows peaks at m/z = 58 and 43. What is the structure of the compound?arrow_forward18. What fragments might you expect in the mass spectra of the following compounds? (a) ملة لة سلم (b) OH (c) Harrow_forwardPropose a molecular formula for a compound that exhibits the given peaks in its mass spectrum. Draw a possible structure. M*• at m/z = 136, relative height = 12.1% (M+1)*• at m/z = 137, relative height = 1.2%arrow_forward
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