Draw the mechanism of the photochemistry reaction of benzophenone when reacted with isopropyl alcohol, H+, and UV light to form the product benzopinacol. Show arrows for electron movement for every step and draw in line structure
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- Compound A is first reacted with methylamine in the presence of acid and then treated with NaBH3CN. Using the spectroscopic data given, what is the structure of the product after step 1?a) Write out the first 3 steps only(to the tetrahedral intermediate shown) in the 6-step arrow pushing mechanism showing how ethyl propanoate is hydrolyzed in acid to form propanoic acidand ethanol. b) NaOH/H2O also serveto hydrolyze an ester; briefly explain why NaOH/H2Ois generally preferable.For the reaction sequence shown give the structures for compounds E through J. (Molecular formulas for each compound are shown in parenthesis.)
- Draw the principal organic product for the reaction of 2-bromobutane with magnesium in diethyl ether, followed with benzaldehyde in diethyl ether, and then followed by dilute acid...The compound eutypine is an antibacterial agent isolated from the fungus Eutypa lata. This fungus results in a disease common to vineyards called eutyposis. Give a sequence of reactions that will take the following reactant and give eutypine when the other reactants used in the sequence are acetylene and acetone.(a) Draw the mechanism for the formation of both of the enols that can be formed from A (use acetic acid & AcOH as the source of the protons) (b) Draw the mechanism of reaction of this enol with bromine to give product B
- Alkenes can be converted to alcohols by hydroboration-oxidation. (a) Draw the structure of the alcohol or alcohols formed in the reaction sequence. Clearly indicate stereochemistry by drawing a wedged bond, a dashed bond and two O Hint in-plane bonds per each chiral carbon. Draw hydrogen atoms that are connected to wedge-and-dash bonds.(b) Characterize the product or products of the reactions. The first step of the reaction, hydroboration, involves addition of BH, to the double bond, with -BH, attached to one carbon and hydrogen Be sure to draw hydrogens on oxygen, where applicable. attached to the other. Consider both Rings the regioselectivity and the Select Draw More Erase stereochemistry of this addition. H Diborane, B,H,, is a source of borane, BH,, and can be used 1. B2H6, interchangeably. Diglyme is a solvent. diglyme 2. H2О2, НО", The product or products of the reaction are characterized as being O S. O racemic. O achiral. O R,S (and/or S,R). O R. O S,S. O R.R. O diastereomers.Define the below statement ? Benzene's six π electrons make it electron rich, so it reacts withelectrophiles.Quinapril (trade name Accupril) is used to treat high blood pressure and congestive heart failure. One step in the synthesis of quinapril involves reaction of the racemic alkyl bromide A with a single enantiomer of the amino ester B. (a) What two products are formed in this reaction? (b) Given the structure of quinapril, which one of these two products is needed to synthesize the drug?
- (a) Synthesis of ethanol from the corresponding oxo compounds with Grignard reagent b) Formation of acetal from acetone and ethane-1,2-diol(b) Answer the following questions based on the compounds below. Jawab soalan berikut berdasarkan kepada sebatian di bawah. CI CI A в (i) Which compound has the higher boiling point? Explain. Sebatian manakah mempunyai takat didih yang lebih tinggi? Terangkan. (ii) Draw the SN2 mechanism for the reaction of compound A with sodium hydroxide, NaOH. Lukis mekanisma Sn2 bagi tindak balas antara sebatian A dengan natrium hidroksida, NaOH.The two reactions that follow involve nucleophilic substitution at an acyl carbon. For each reaction, show the electrophile and the nucleophile in the key bond- forming step, the corresponding tetrahedral addition intermediate, and the leaving group in the bond-breaking step. Write a general mechanistic scheme (use curved arrows to show bond-making and bond-breaking processes) for these reactions, keeping in mind that acid- and base-catalyzed processes will differ in their timing of proton transfers. 00 || || PhCOCPh+ C₂H5OH 00 |||| PhCOCPh+ 2 CH3NH H₂SO4 cat. O PhCOC₂H5+ PhCO₂H PhCNCHg + CH3NH PhCO