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- 7) You want to synthesize 3-methyl-2-pentene from 2-chloro-3-methylpentane. Which reagent would you use? a. HCI, heat b. NH:(aq), 25°C c. CH:CO2NA, CH:CO2H, heat d. CH3CH2ONA, CH3CH2OH, heat e. CН:CH2ОН, heatDraw the skeletal structure of the indicated product. MgBr + (2 equivalents) 1. diethyl ether 2. D30* aromatic ring-containing major organic product A other + organic product BN,N-diethyl-m-toluamide (DEET) is the active ingredient in many insect repellent preparations. Following is one of the steps in its synthesis. In the box below draw the structure of the product of this reaction. H3C MgBr 1. CO₂ 2. H₂O* product • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Draw the Grignard reagent as a covalent magnesium bromide.
- N,N-diethyl-m-toluamide (DEET) is the active ingredient in many insect repellent preparations. Following is one of the steps in its synthesis. In the box below draw the structure of the product of this reaction. H3C MgBr 1. CO2 2. H3O+ product • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Draw the Grignard reagent as a covalent magnesium bromide. 90-87 0 + 11 ? n [1. The ketone 2-heptanone has been identified as contributing to the odor of a number of dairy products, including condensed milk and cheddar cheese. Describe the synthesis of 2-heptanone from acetylene and any necessary organic and inorganic reagents. 2. Compound A has the molecular formula C14H25Br and was obtained by reaction of sodium acetylide (HC≡CNa) )with 1,12-dibromododecane. On treatment of compound A with sodium amide, it was converted to compound B (C14H24). Ozonolysis of compound B gave the diacid HO2C(CH2)12CO2H. Catalytic hydrogenation of compound B over Lindlar palladium gave compound C (C14H26), while hydrogenation over platinum gave compound D (C14H28). Sodium-ammonia reduction of compound B gave compound E (C14H26). Both C and E yielded O═CH(CH2)12CH═O on ozonolysis. Assign structures to compound A through E so as to be consistent with the observed transformations.7. Reaction product of 3-methyl-butene with hydrochloric acid:a) 2-methyl-3-chlorobutaneb) 3-methyl-3-chlorobutanec) 2-chloro-3-methyl butaned) 2-chloro-2-methyl butane 8. What type of reaction takes place when CO2 + H2O and energy are obtained from 3-methyl butyne?a) Hydrogenationb) Halogenationc) Partial oxidationd) Total oxidation
- 10. A compound X of molecular formula C8H12 with no triple bonds reacts with one equivalent of H2 to give a new compound having molecular formula CaH14. What can be inferred about the structure of compound X? A) Compound X has 3 rings. B) Compound X has 3 pi bonds. Compound X has 1 ring and 2 pi bonds. D) Compound X has 2 rings and 1 pi bond. 11. Determine the product of the following reaction. H, Lindlar's cat. %3D IV A)I B) II C) III D) IV Type here to search 互i | A C 三D4. What are the products from the following reaction? H3O+ کاCH3 CH3 1. ВНз, THF 2. NaOH, HzO, Н202 H3C CH2 H3C Alkenes can be hydrated via the addition of borane to yield alcohols with non-Markovnikov regiochemistry. The boron atom is an electrophile and thus follows Markovnikov's rule in adding to the carbon containing the most hydrogens. Oxidation of the alkylborane with basic peroxide yields the product alcohol. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions OR OR RO-B-OH RO-B ÖR OR OH
- N,N-diethyl-m-toluamide (DEET) is the active ingredient in many insect repellent preparations. Following is one of the steps in its synthesis. In the box below draw the structure of the product of this reaction. H3C MgBr 1. CO2 2. H30* product • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Draw the Grignard reagent as a covalent magnesium bromide. P ору aste O O O- []# Previous Next Email Instructor Save and ExitThe southern pine beetle utilizes a multi-component aggregation pheromone (one component shown below) to start mass colonization of healthy trees. The biosynthetic pathway involves the cyclization of this acetal from the straight chain structure. Draw the straight chain structure that could be used to form this acetal. Use wedges and dashes to correctly depict the stereochemistry. H3C O- 2 3 OH O Proble Atoms, Bo and Ring HS 5 466 HO SChemical Reactions: Give the product/s of each chemical reaction 1. Reaction of this alkene to the different reagents written above and below the arrows. ¡ HBr