12.20b x Your answer is incorrect. Try again. OH Na,CrO H2SO4, H,0
Which reaction is an example of oxidation? CH3CH20 Na+ + CHI-CH3CH2OCH3 + Nal А H Pac B CH,OH H2SO ОН HC i. +H2O OCH H3C OH Na,Cro H2SO4 Ос OA
complete this mechanism.
H + Na 0- CI - H3C Hн- + -H + H2O final -6 + Na O—CI Product
For any corrections, disregard the parts of your molecule
represented by R-groups.
o Below the incorrect mechanism write a discussion of the
incorrect mechanism identifying all of the mistakes in the
mechanism. Keep in mind that there will be more than one mistake in
the given mechanism and that the product given is not necessarily
the correct product of the reaction of your molecule with the given
reagent.
o For each mistake, give a detailed, scientific
explanation of why it...
42. Which mechanistic step is INCORRECT for this reaction? O= OH (D) H + OH — 43. What is the major product of this reaction? HgC Ph SCH нот NaOET ЕОН, А | Phu Ph CH₂ (A) B) H₃ C CH (B) H₃C . - H Ph CH₂ - PH CH₂ 44. Which reaction conditions will accomplish this transformation? (A) H2, Pd/C (C) Na, NH3(1) (B) H., Lindlar's catalyst (D) H:0, H2SO.
Why is this mechanism incorrect?
Incorrect Mechanism (The mechanism is for the formation of the 1,4 product. Please ignore the 1,2 product). mavo + H-Br - R Br
EXERCISE Writing Reaction Mechanisms: Acyl Transfer Electron pairs :0: H-o-H CH3 C Erase + Na :0– CH3 :0 - H Write the first step of the reaction mechanism using curved arrows to show electron reorganization. 0 O H3C- + Na OH HO + H-ô-CH 0 - Nat OCH < Recheck Next (1 of 5)
Draw a curved arrow mechanism for the following reaction. Na H H N Na H- H H T
x H R OH ОН R this method does not work Fischer esterification cannot be used to prepare tert-butyl esters. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism. Arrow-pushing Instructions :0: + :OH ox H-OH ox H20 R R
Select all possible 2-ketopentoses. x Incorrect. D-forms: CH, OH H- OH HO- H CH, OH CH,OH HOEH HOH CH OH CH,OH O H- OH H- OH CH, OH CH, OH 0= HO+H H- OH CH,OH X Incorrect. L-forms: CH,OH HOH НЕОН CH, OH CH, OH O= НЕОН HOH CH OH CH, OH HOH HOH CH, OH CH, OH O= HOH HOH CH, OH