Draw the main organic products of the reaction. Indicate the stereochemistry, including all hydrogen atoms, at each stereocenter. Omit byproducts such as salts or methanol. Br CH₂ONa CH3OH
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- :) Predict the NAME, STRUCTURE and STEREOCHEMISTRY of the BEST ORGANIC REACTANT or the MAJOR ORGANIC product for the following reactions: CH2 МСРВА, НзО* meso 3,4-hexane diol FoH H+OH CHCH a) (name, str, stereochem) ? HCI b) 3-methyl 1-pentene - ? (name, str, stereochem) c) methylcyclohexane ----Br2, hv------? (name, str, stereochem) 40H d) ? (name, str., stereochem) Os04, water----meso cyclohexane 1,2-diol ----Addition proceeds preferentially through the most stable carbocation intermediate. At high temperature, 10-20 °C or higher, products equilibrate; and the most stable product predominates (thermodynamic control). At low temperature, 0 °C or lower, there is kinetic control of reaction products. CI CI b Write a mechanism for the first step of this reaction using curved arrows to show electron reorganization. Consult the arrow-pushing instructions for the convention on regiospecific electrophilic attack on a double bond. Arrow-pushing Instructions n →XT H-CI:from Ce [Review Topics] [References] Use the References to access important values if needed for this question. Draw the structure of the organic product that is expected when the following compound is treated with concentrated H,SO4. он H2S04 CH3CCH2CH2CH3 heat ČH3 • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one. C P. opy aste C . CH4 ChemDoodle Retry Entire Group 5 more group attempts remaining Submit Answer
- Below is a mechanism that represents the following single reaction sequence: a certain alcohol undergoes acid- catalyzed dehydration (conversion that involves the loss of water from the reacting molecule or ion) to form an alkene product. Write the IUPAC name of the product. Include E/Z stereochemistry. Hint: Name of the substituent of the product is similar to that of reactant. * :ÖH :O: :0: :O: 1-phenylpropanol oxonium ion H. нон Carbocation stabilised by resonance loss of water benzylic carbocation organic product + H-B Alkene formed ;B proton abstractionDraw the major organic product(s) of the following reaction. 1 eq. NANH2, NH3(0) CH;CH,CH,CH,-Br H-CEC-H • You do not have to consider stereochemistry. • Separate multiple products using the + sign from the drop-down menu. • If no reaction occurs, draw the organic starting material. P. opy aste ノ/ ChemDoodle >2. Complete the following: Stereochemistry and regiochemistry may be important. type a) NaOH (aq) b) neutralize ➤ OMe a) LiAlH4, ether NMe2 f) b) H3O+ type b) a) HS SH ZnCl2, H+ b) Raney Ni g) type formation of thioacetal/desulfurization HO type Hell-Volhard-Zelinsky Reaction h) CO₂Et type Wittig Reaction H H₂N OEt OH DCC, CH2Cl2 Ph type a) NaH, THF CO₂Et d) b) BnBr, THE CO₂Et c) NaOH(aq); HCl(aq); heat type type HO type (COCI)2, cat DMF CH2Cl2 j) CI type a) NHEN b) LiAlH, THE c) H3O+ CO₂Me CO₂Me
- Q3. Please provide a curved arrow mechanism that can explain the reaction shown below. i) LDA ii) aq. workup Me Me TBSO CI Q4. a) Identify the main products of the following cycloaddition reactions. In each case, provide a curved arrow mechanism that accounts for their formation. Me OH H Me b) Provide a clear drawing that explains the stereochemistry of the product.D. Question. When a-pinene is boiled in dilute aqueous acid, the following reaction occurs. Propose a complete mechanism and label the C atoms in the product to correspond with those given in the reactant. Identify the chiral center in the product and explain exactly how the product is formed as a racemic mixture. Include non-bonded electrons and formal charges. H #30 H H₂O, heat a HI!!! f H a-pinene b (rac) ܝܐ OHNH₂ NHỊCH, tipy (a) acrylamide Diamines are used as the building blocks for the synthesis of pharmaceuticals and agrochemicals. In the above synthesis, draw the structure of the product (b). ChemDoodle 1. LIAIH 2. H₂O • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Include cationic counter-ions, e.g., Na* in your answer, but draw them in their own sketcher. OF (b) 6
- Draw the major organic product(s) of the following reaction. 1 eq. NaNH2, NH3()) H-CEC-H CH3-1 • You do not have to consider stereochemistry. ● Separate multiple products using the + sign from the drop-down menu. • If no reaction occurs, draw the organic starting material.a) Draw the mechanism, using good curved arrow notation, for the reaction of 2-methyl-2- butene with bromine in water, omitting any stereochemistry: b) (R)-3-butyn-2-ol is treated with 2 mol of HBr, yielding optically active Compound A (C4H8OBr2). Draw the structure of the reaction with the correct stereochemistry. c) Name Compound A above, including stereochemistry. d) Compound A is treated with HBr to yield Compound B (C4H7Br3). The resulting solution is optically inactive. Draw the product(s) obtained and explain why there is a loss in optical activity.Draw the organic product formed in the following reaction. H-N Job OEt OEt [1] NaOEt [2] CI [3] H₂O+, A NHAC HO "CH₂ edit structure ...