Homework Answers
-CH3 (methyl) has only one adjacent "H" atom, hence it will show a splitting doublet in HNMR
Carbonyl carbon's always show above ~ 170 ppm chemical shift value.
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Question Which of the following key NMR signals would you expect to see if analyzing the remarkable natural produc...
18) How many signals would you expect to see in the 1H NMR spectrum of the...
18) How many signals would you expect to see in the 1H NMR spectrum of the following compound? 18) NI CH3CH2CH2CCH3 A) 6 B) 4 C)2 D) 5 E) 3 3 19) What splitting pattern is observed in the 1H NMR spectrum for the indicated hydrogens? OCH CH3 19) - D) quartet E) septet A) singlet B) doublet C) triplet 20) Which of the following alcohols dehydrates most rapidly? 1 -OH IV. CH3- 20) CH3- II. CH3 OH Cox HO...
b) Which area of the spectrum did you focus on and which key piece of information...
b) Which area of the spectrum did you focus on and which
key piece of information (chemical shift, integration, or splitting
pattern) helped you decide which spectrum belonged to which isomer?
Please explain your responses.
Reaction 1: Nitration HNO3 NO2 + + H2SO4, H20 NO2 toluene NO2 ortho meta para Spectrum For Peak A on GC For Peak B on GC For Peak Con GC Isomer Ortho Nitro Toluene Para Nitro Toluene Meta Nitro Toluene Proton NMR Spectrum for Peak...
b) Which area of the spectrum did you focus on and which key piece of information...
b) Which area of the spectrum did you focus on and which key
piece of information (chemical shift, integration, or splitting
pattern) helped you decide which spectrum belonged to which isomer?
Please explain your responses.
Reaction 1: Nitration HNO3 NO2 + + H2SO4, H20 NO2 toluene NO2 ortho meta para Spectrum For Peak A on GC For Peak B on GC For Peak Con GC Isomer Ortho Nitro Toluene Para Nitro Toluene Meta Nitro Toluene Proton NMR Spectrum for Peak...
How many signals would you expect in the 1H NMR spectrum of (CH3)2CHCH2CH2CH3? 20. How many...
How many signals would you expect in the 1H NMR
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Question 8 4 pts What types of splitting patterns would you expect in the proton NMR...
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Match the following spectral descriptions with one of the compounds shown below. A compound is NOT...
Match the following spectral descriptions with one of the compounds shown below. A compound is NOT used more than once. [ Select] AC4HO2 compound has a strong IR absorption at 3300-3400 cm-1. The 1 H NMR spectrum has two singlets at 8 4.2 and 4.4 ppm: relative areas 4:2..The 13C spectrum shows 2 signals at 8 85 and 52 ppm. [ Select] AC7HO compound has a strong IR absorption at 1700 cm?, The H NMR spectrum has a singlet at...
Practice ACS questions: Choose the compound which would be insoluble in aq. sodium hydroxide solution. а)...
Practice ACS questions:
Choose the compound which would be insoluble in aq. sodium hydroxide solution. а) H H -g" aф-о e о a О о This semester you learned about the Grignard reactions of aldehydes and ketones. Which of the following compounds can not be synthesized by the Grignard reaction of the corresponding aldehyde/ketone with EtMgBr followed by acidic work up. (MULTIPLE ANSWER) OCH (A) (D) OH OH OCH2CH3 OH OD ПС ПВ ОА For the following Grignard reaction, select...
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b) Which area of the spectrum did you focus on and which
key piece of information (chemical shift, integration, or splitting
pattern) helped you decide which spectrum belonged to which isomer?
Please explain your responses.
Reaction 1: Nitration HNO3 NO2 + + H2SO4, H20 NO2 toluene NO2 ortho meta para Spectrum For Peak A on GC For Peak B on GC For Peak Con GC Isomer Ortho Nitro Toluene Para Nitro Toluene Meta Nitro Toluene Proton NMR Spectrum for Peak...
b) Which area of the spectrum did you focus on and which key
piece of information (chemical shift, integration, or splitting
pattern) helped you decide which spectrum belonged to which isomer?
Please explain your responses.
Reaction 1: Nitration HNO3 NO2 + + H2SO4, H20 NO2 toluene NO2 ortho meta para Spectrum For Peak A on GC For Peak B on GC For Peak Con GC Isomer Ortho Nitro Toluene Para Nitro Toluene Meta Nitro Toluene Proton NMR Spectrum for Peak...
How many signals would you expect in the 1H NMR
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Question 8 4 pts What types of splitting patterns would you expect in the proton NMR spectrum of the molecule shown below? Mark all that apply. es doublet singlet A triplet с quartet D sextet E B ОА OB Ос OD ОЕ Question 9 4 pts Which compound corresponds to the H NMR spectrum below? (Integral values are indicated above/beside signals.) 3 3 2 1 0 2 PPM FO 6 ho La А B с D E OB o D...
Match the following spectral descriptions with one of the compounds shown below. A compound is NOT used more than once. [ Select] AC4HO2 compound has a strong IR absorption at 3300-3400 cm-1. The 1 H NMR spectrum has two singlets at 8 4.2 and 4.4 ppm: relative areas 4:2..The 13C spectrum shows 2 signals at 8 85 and 52 ppm. [ Select] AC7HO compound has a strong IR absorption at 1700 cm?, The H NMR spectrum has a singlet at...
Practice ACS questions:
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