Page 2: Box (5 x 2 marks = 10 marks) Fill in the boxes with reactants,...
Fill in the boxes with reactants, reagents or products. If
enantiomers or diastereomers are made, please draw the
stereoisomers.
- NaOEt, EtOH Br
Reactions of Epoxides Fill in the boxes with the appropriate reactants and products to complete the reaction. All reagents are used in excess to assure high yields in respect to the reactant. Indicate stereochemistry using wedges and dashes if applicable. If you get more than one product (c-g. two enantiomers as racemic mixture), draw both polar, agrotic b) pc㎞.peutic c) e)
(1 - 10 marks) Fill in the dashed boxes. No part marks. Consider the questions carefully! If no molar equivalencies are shown, assume it is 1 molar equivalent. No mechanisms, no arrows, no electron movement are to be shown. If a "l" and a "2" are placed in the box, this means first step and second step of chemical process. This topic is now aromatic substitution. For questions (a), (b), (d) and (e) are there two products formed/is there a...
4. Fill-in-the-blanks: draw the missing reactants or products involved in the following single or multi-step reactions. Indicate stereochemistry and draw multiple stereoisomers where applicable. i EtOH EtOH [H2SO4] 1) EtMgBr 2) H20 5. For most ketones, hydrate formation is unfavorable, because the equilibrium favors the ketone rather than the hydrate. However, the equilibrium for hydration of hexafluoroacetone favors the hydrate. Propose a mechanism for this transformation below and provide an explanation for this observation. H2O Но он F3CX CF3 F3C...
29 - Fill in the boxes with the productis), reactantis) or reagentis) for the following reactions. Draw only the predominate regioisomer and indicate the stereochemistry where appropriate. la racemi mixture is formed, you may indicate this using a wavy line or mark the chiral center with an asterisk ), and write racemic in the box You may also draw both enantiomers and write RACEMIC in the box. Indicate if the product resulted from 52.51. 2. El in the dotted box...
Page - 5 - of 9 5A) DRAW expected product(s). INCLUDE stereochemical outcomes if they occur... Starting Material Reagents or Reaction KMnO4 Both final products Carbene 1 Rxn: Dimethyl carbene (singlet HC CHE Both products Carbene 2 Rxn: Dimethyl carbene [ singlet ] ㅂ H₃C. CH, Product or products... Carbene 3 Rxn: Dimethyl carbene [ triplet HC CH3 Product or products... 5) What is the relationship of the products in "Carbene 1 Rxn" ? identical enantiomers diastereomers meso not related...
Page < 3 8. Strings: fill in the missing products or reactants. Show stereochemistry (10 points) NaoMe 1. BH, THF 2. H2O3, OH RCO H HB, ROOR
10. Part A. (9 pt) Fill in any necessary reagents or intermediates in the empty boxes in the scheme below. 2) DMS 1) LAH 52) H30+ / H20 PCC/ CH2Cl2 W + En сон 1) OsO4 2) NaHSO3 /H20 + 3 other stereoisomers.
2. Fill in the boxes with the reactants for the following sequence (A -D) of reactions. (16 points) A B Br MgBr 4 D HO OH 2. 4 3. Provide the common names for the following dicarboxyacids. (8 points) NH2O HO "OH HO ОН
Mini-Spiderweb (16 pts,
2pts/box). Please complete the following reaction spiderweb with
the appropriate starting materials, reagents or products. Pay
attention to stereochemistry, and for product boxes – include only
the major product(s), unless otherwise noted. E1 and Sn1 (5 pts).
The following alkyl halide will undergo both E1 and Sn1 mechanisms
to give a slew of products when exposed to water. Please draw them
all in the box below. Remember to consider rearrangements and
account for all stereoisomers formed.
Mini-Spiderweb...