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- H. H ÔMe Ph;P LIAIH4 compound a compound b HO. Bombykol C16H300 The above reaction scheme presents one possible synthesis of the compound. Work out the synthesis on a separate sheet of paper, and then draw the structure of compound b. Consider E/Z stereochemistry of alkenes. Do not show stereochemistry in other cases.NH₂ NHỊCH, tipy (a) acrylamide Diamines are used as the building blocks for the synthesis of pharmaceuticals and agrochemicals. In the above synthesis, draw the structure of the product (b). ChemDoodle 1. LIAIH 2. H₂O • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Include cationic counter-ions, e.g., Na* in your answer, but draw them in their own sketcher. OF (b) 6Draw the major organic product(s) of the following reaction. 1 eq. NaNH2, NH3()) H-CEC-H CH3-1 • You do not have to consider stereochemistry. ● Separate multiple products using the + sign from the drop-down menu. • If no reaction occurs, draw the organic starting material.
- Q17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H,N. CsHgNO + CH;OH 2Arrange the compounds below in order of increasing reactivity in a SN2 reaction. 1. (CH3)2СНCI 2. CH3CH2B1 3. CH3CH2C1 A) 1; 2; 3 В) 3;B 2; 1 C) 1; 3; 2 D) 2; 1; 3 E) 3; 1; 2NaN3 НО. NH compound c compound d CI H₂, Pt -85 [References] compound a SOCI₂ SOCI₂ compound d compound e Moclobemide compound b CI The above reaction scheme presents one possible synthesis of the compound. Work out the synthesis on a separate sheet of paper, and then draw the structure of compound e. Consider E/Z stereochemistry of alkenes. • Do not show stereochemistry in other cases. {n [F ? ChemDoodleⓇ
- 3) Provide the structure of the major organic product in the following reaction. CH3 4) Classify the compound below as aromatic, anti- aromatic, or non-aromatic. H 5) Classify the compound below as aromatic antiaromatic, or nonaromatic. Assume planarity of the TT network. B N 6) Provide the structure of the major mononitration product of the compound below or write "no reaction" if you think so. (hint: methoxy group is a stronger EDG than phenyl group) OCH 32. Complete the following: Stereochemistry and regiochemistry may be important. type a) NaOH (aq) b) neutralize ➤ OMe a) LiAlH4, ether NMe2 f) b) H3O+ type b) a) HS SH ZnCl2, H+ b) Raney Ni g) type formation of thioacetal/desulfurization HO type Hell-Volhard-Zelinsky Reaction h) CO₂Et type Wittig Reaction H H₂N OEt OH DCC, CH2Cl2 Ph type a) NaH, THF CO₂Et d) b) BnBr, THE CO₂Et c) NaOH(aq); HCl(aq); heat type type HO type (COCI)2, cat DMF CH2Cl2 j) CI type a) NHEN b) LiAlH, THE c) H3O+ CO₂Me CO₂MeDraw the structure of each molecule. (a) (E)-4-carbamoylbut-3-enoic acid; (b) 3-carbamoylpentanediamide; (c) 4,6-dioxohexanenitrile; (d) (1S,2S)-2-methoxycyclopent-3-ene-1-carbonitrile; (e) cyclohexa-3,6-diene-1,3-dicarboxylic acid