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Interpretation:
Synthesis of some compounds using two different cross-coupling reactions is to be determined.
Concept Introduction:
Heck Mizoroki reaction is a coupling reaction between an
Suzuki Miyaura coupling is a palladium catalyzed reaction in which alkenyl or aryl borate couple with an alkenyl or aryl halides. In this reaction, the stereochemistry of reactants is retained in products.
Stille coupling is a reaction in which organotin compounds are coupled with organic halides. Here, organotin compounds are used as coupling agents. This reaction takes place in presence of palladium catalysts.
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Chapter 21 Solutions
EBK ORGANIC CHEMISTRY
- Illustrate the following reactions :(a) Sandmeyer’s reaction(b) Coupling reactionarrow_forward(b) Explain the possible reagents for the following chemical reactions. I. 2. II. 1. `OH 2.arrow_forwardDescribe the following giving the relevant chemical equation in each case: (i) Carbylamine reaction (ii) Hoffmann’s bromamide reaction.arrow_forward
- Provide the mechanism of the redica reaction below (b)arrow_forward(d) For the two reactions shown below, draw the structure of the expected product(s) and identify the type of reaction that is occurring. (1) (ii) NH₂ + CO₂Et + NaOCH3arrow_forward10. (a) Give reasons, arrange the following compounds in order of decreasing frequency of carbonyl absorption in their IR spectra. CHO CHO CHO LOH (iii) (i) (b) How can the following geometric isomers be distinguished by IR spectroscopy? andarrow_forward
- Compound A undergoes the following reactions:(a) Which of the reactions shown require(s) an oxidizing agent? (b) Which of the reactions shown require(s) a reducing agent?arrow_forward2. Explain the following: (a) How sites of variable activity in a heterogeneous catalyst might result in a polymer of high polydispersity. (b) Why molecular hydrogen is useful for controlling molecular weight in Ziegler-Natta polymerization. (c) Why only coordination catalysts are effective for polymerizing propylene and higher 1-alkenes.arrow_forward3. (2) Complete the following reactions by drawing structures for the products in each case. (K° = potassium metal) H2O KO zeolite catalyst 300°C 30 atmarrow_forward
- (a) Illustrate the following name reactions by giving example :(i) Cannizzaro’s reaction(ii) Clemmensen reduction(b) An organic compound A contains 69.77% carbon, 11.63% hydrogen and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollen’s reagent but forms an addition compound with sodium hydrogen sulphite and gives positive iodoform test. On vigorous oxidation it gives ethanoic and propanoic acids. Derive the possible structure of compound A.arrow_forwardGiving an example for each describe the following reactions :(i) Hofmann’s bromamide reaction(ii) Gatterman reaction(iii) A coupling reactionarrow_forwardWhat product would result from the following. (A) (B) OH OH 1) MeMgBr 2) 'Br (C) or (D)arrow_forward
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