Help needed for Wittig Reaction Synthesizing 9-(2-Phenylethenyl)anthracene:
Help needed for Wittig Reaction Synthesizing 9-(2-Phenylethenyl)anthracene: ce 9-anthraldehyde Benzyltriphenylphosphonium chloride 9-(2-phenylethenyl)anthracene
Include the proposed reaction (using structures) and mechanisms for this week's experiment, starting with benzyltriphenylphosphonium chloride and 9-anthraldehyde, and ending with 9-(2- phenylethenyl)anthracene. Draw the structures of the (2) and (E) isomers of 9-(2- phenylethenyl)anthracene. State which isomer you think will form (Z, E, or both?). Briefly explain your reasoning. pnci HR. RH NaOH HR2 PhẩP- - Pháp Bu Y- Ph R HR HR Z/Cis E/trans
This relates to an organic chemistry experiment on the synthesis of trans-9-(2-phenylethenyl)anthracene. A) Use a Wittig reaction to make the following alkenes: B) How would you convert these alkenes into the corresponding saturated alkanes?
This relates to an organic chemistry experiment on the synthesis of trans-9-(2-phenylethenyl)anthracene. "Wittig reaction usually requires use of very strong bases for the deprotonation step. Name and give the formula of the strong base learned that could be used for the deprotonation." Please be detailed, thank you.
63 cle OLI KPO photo d) K,PO, H2 Phyp-C 9-anthraldehyde M.W.. 20624 g/mol 9-(2-phenylethenyanthracene Benzyltriphenylphosphonium chloride M.W. = 388.88 g/mol Phyp=g m.p. 104-105°C M.W. 280.4 g/mol m.p. - 130-132°C Benzyltriphenylphosphonium ylide QUESTIUNI Which compound is not a possible limiting reagent? o toluene 9-anthraldehyde benzyltriphenylphosphonium chloride o K3PO4 QUESTION 2 What is the theoretical yield, in moles, of 9-(2-phenylethyl)anthracene if the limiting reagent for this reaction is a 50% miv solution of NaOH and 0.266 mL are used as a base?...
why it is possible to generate the ylide using sodium hydroxide in the wittig reaction of 9-anthraldehyde and benzyltriphenylphosphonium ylide
After a wittig reaction I had 0.158 g. My initial weight was 0.97g of benzyltriphenylphosphonium chloride 7ml of absolute ethanol, 1.5 ml of cinnamaldehyde, What is my percent yield?
This relates to an organic chemistry experiment on the synthesis of trans-9-(2-phenylethenyl)anthracene. "In the experiment the substrate was deprotonated with a relatively mild base, NaOH. Explain why this substrate can do this. (hint: ARIO!)" Please be detailed.
1) Draw the complete mechanism of the Wittig reaction of benzyltriphenvlphosphonium chloride with 9-anthraldehyde where potassium hydroxide is used as the base. 2) In the reaction from question 1, what are the two stoichiometric byproducts? Hint: One is inorganic (contains no carbon atoms) and doesn't contain oxygen. The other byproduct is organic (does contain carbon atoms) and does contain oxygen. Identify them in your mechanism above
What are the answers for these problems ? Need help ASAP ! omplete this section after the experiment is complete. ou will not run a TLC for this experiment. The TLC Analysis for the Wittig Reaction experiment is provided here. Lane 1-9-anthraldehyde Lane 2 -benzyltriphenylphosphonium chloride Lane 3 - triphenylphosphine oxide Lane 4-the crude reaction mixture Lane 5- the recrystallized product 18
Based on the Wittig Reaction exp. below, please answer a) and b). In b) you can disregard the part about the IR, just please interpret and assign protons, shift values, which protons are for which groups, etc on the HNMR. The % yield was 34%, and MP was lower than expected (to assist with answering part a). This should be all the information you need to answer the question. HNMR Discuss the percentage yield of the reaction. Explain and provide...