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please help Question 2 8 pts Colombiasin A, shown as the final product in Figure 1,...
Please help me with these questions,. Draw the major product of the following reaction Question 8 н+ Нас Нас CH3 CH3 но CHзон CHз Create OscerSketch Answer 8 Incorrect: Answer has an incorrect structure. Complete the following synthesis by selecting from the list of 10 reagents below. Each reagent (or set of reagents) is labeled as a letter. In the answer box, simply place the order of reagents used as uppercase letters. For example, if your synthesis involves using reagent...
can you please explain each step. thanks 1. Using the HNMR spectrum and molecular formula for the product, determine the structure. Complete the synthesis using an organometallic reagent and an aldehyde or ketone. (Full: correct synthesis and HNMR assignment, partial: correct NMR assignments) Br CyH60 Reagents for Synthesis 2 PPM 4.2 ppm, 1H, s 3.2 ppm, 1H, 1.92 ppm, 2H, m 0.98 ppm, 12H, d
Question 3 Propose a stepwise synthesis for N-propylbutanamide, using 1-propanol and/or carbon dioxide as your only source of carbon and any other reagents necessary. Testbank, Question 140a Using the reagents below, list in order (by letter, no period) those necessary to provide this synthesis Note: Not all spaces provided may be needed. Hints: First receive a Grignard reagent in steps 1 and 2. Use propanol in step 5. In step 9 a product from step 4 reacts with a product...
Please explain the mechanisms! 1. Propose a synthesis for each of the following problems starting with reagent shown and using any other organic or inorganic reagents allowed in each problem. Multiple steps are required. The number of steps you use does not matter. Reactions should give the desired product as a major product. For full credit show the product of each step (reaction). If you make use of organometallic reagents such as Grignard, Wittig, organolithium, organosodium, organocopper, etc. you must...
For 1 - 3, design reasonable syntheses of each of the target molecules using the provided starting material and organic and inorganic reagents of your choice. Show the reagents needed for each step and the product of each step. Do not show any mechanisms. Please put all your answers on this sheet. Write your answers like this (actual number of starting steps may vary)material reagent(s) reagent(s) ABCD target Two equally reasonable routes are possible Can you find them both? (For...
1. Provide the appropriate Wittig starting materials used to form the following product. Stereochemistry must be included where appropriate: 1.) Triphenylphosphine 2.) 50% NaOH, H20 2. Provide a synthesis of the following compound using the alkene provided as your only source of carbon. Multiple equivalents of the alkene can be used. You may use triphenylphosphine, and any additional inorganic reagents required as well. You may use any other carbon containing reagent as well, provided that it is not used as...
Consider the reaction below. Note that the stereochemistry of the product is now shown: 12 points. 5. Br2 CH2Cl2 Br Br a. Draw the most stable chair conformation of the starting material (i.e. the alkene). Use the chair template provided on your answer sheet. You do not need to draw ring hydrogens. (2 points) b. Draw a detailed stepwise mechanism for the reaction. Draw all intermediates and use curved arrows to show 'electron movement'. If multiple stereoisomers of the same...
Draw the structure(s) of the major organic product(s) obtained after workup of the following reaction. NaOH O-S CH3 excess NH2 workup . You do not have to consider stereochemistry. If no reaction occurs, draw the organic starting material. Draw structure(s) of product(s) after workup to neutralize acid. Include counter-ions, e.g., Nat, I, in your submission, but draw them in their own separate sketcher. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner....
please help asap in all sections!! Question 5 Methyl 4-methylpentanoate is one of 120 volatile compournds identified in a study of metabolites from Streptomyces bacteria (Actinomycetologica 2009, 23, 27-33) Mathy 4-methylpentanoate The synthesis of Methyl 4-methylpentanoate using 2-methylbutane involves several steps. Part-1 of the reaction scheme (2-methylbutane to 3-methyl-1-butene) is illustrated below. Identity the reagent involved in each step and arange them accordingly Br A by NaOH; Os and H20; HBr/ROOR; NaOEt/EtOH NaOH; O and HyO; NaDE/EROH; HBr/RDOR Br: NaOE/EOH;...
1.) Please help me to figure out if this is the correct product, and if you could also give me an arrow pushing mechanism. (Salicylic Acid + Benzylamine reacting with EDCI, Cat. DMAP and DMF). 2.) What is the purpose of adding EDCI as a coupling reagent? 3.) Which groups in this reaction can undergo any type of covalent and/or non covalent interaction with any enzymes or receptors? 4.) What are at least two other side products other than the...