NaOHлн°/s 10. At which carbon in the final product is there an ethyl?
NaOCH; NaOH/HT/A ا ل Br - aے 10. At which carbon in the final product is there an ethyl?
- At which carbon in the final product is there a methyl? Vambo base dimer 0. At which carbon in the final product is there an ethyl?
1. In the final product, triphenylmethyl ethyl ether, there is only one oxygen atom. From which of the two starting materials did it come? 2. Calculate the Rf value for the spot on the TLC plate shown below. Measure distances and show your work. in mm
1. In the final product, triphenylmethyl ethyl ether, there is only one oxygen atom. From which of the two starting materials did it come? 2. Calculate the Rf value for the spot on the...
base dimer base 9. At which carbon in the final product is there a methyl?
OL base base, dimer 9. At which carbon in the final product is there a methyl?
Which is the major product of the reaction of ethyl Grignard reagent and propiohenone? What is the major product in the following reaction? What is the final product, Z, of the following synthesis? In the reaction sequence below, what are intermediates I and II? Which of the following will not give a positive reaction with Tollen's agent (AgNO3/NH4OH)?
1. For Ethyl Propionate please draw a structure and show which of the carbon atoms and signal best correlates in the 13CNMR spectrum? 2. For Ethyl Propionate please draw a structure and show which of the hydrogen sets best correlates to signal in the 1H NMR spectrum? 13C NMR SIGNAL CHEMICAL SHIFT IN PPM 1 171.4 2 64.3 3 51.8 4 43.8 5 22.4 1 HNMR SIGNAL CHEMICAL SHIFT IN PPM 1 4.1 2 3.6 3 3.0 4 2.3
After a sample of optically pure (S)-2-ethyl-cyclohexanone is dissolved in an aqueous solution for several hours, a significant loss of optical activity is observed. Explain. (10 pts) (S)-2-Ethyl-cyclohexanone The following aldol reaction occurs readily. Please provide the product. Why can this compound not undergo the final elimination / condensation to yield an enone? (10 pts) 1. LDA 2. H2O+
8,9,10 please
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9.
base, dimer, base
8.
excess, NaOH, heat
10.NaOCH3, Br, NaOH/H+
eces Nao hea 8. What is the major product? b. d. а. с. e. not a.-d 9. At which carbon in the final product is there a methyl? -0 Ju dne 10. At which carbon in the final product is there an ethyl? NaCH NaoH
H2O, cold Br final organic product(s) H2O, warm Br final organic product(s) NASCH3 Br CH3CN final organic product(s) NaOAc Br THE final organic product(s) NaOH Br- Н.о final organic product(s) NaCl Br DMF final organic product(s) NAOCH3 Br CHSOH final organic product(s)