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- Chemistry: 1) SAM reacts with nucleophiles in an SN2-like reaction in our body for a variety of important biosynthetic reactions. Below on the molecule of SAM, please circle and label which part of the molecule would act as the electrophile, and which part of the molecule is the leaving group. (5 pts) HO NH2 NH2 N N CH 3 N Z -S: + 'OH OH S-Adenosyl methionine7) 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, heat4) (6 pts) a) Chlorocyclopentane may be synthesized two different ways. Fill in the missing reactant required for each pathway. Ch, CI HCI light b) Which reaction represents the more efficient way to synthesize chlorocyclopentane? Briefly explain your choice.
- When 2-pentene is treated with Cl2 in methanol, three products are formed. Account for the formation of each product (you need not explain their relative percentages).Choose the reagents that can be used to achieve the following conversion. More than one reaction is required, and reactions from earlier chapters may be necessary. Reagents may be used more than once. CH3-CH2-C-CH3 CH3-CH=CH-CH3 H2SO4 H,SO, 1 2. 180°C 140°C (0) H2 3. 4 Pt H+ H20 5. 6. CH;OH H2SO, (Enter multiple answers as a comma-separated list.)In the substitution reaction of 2-chloro-2,4- dimethylpentane with water, the rate at which the alcohol product is formed depends on the concentration of the nucleophile. Select one: True False
- aldehydes and ketones 1 Which of the following statements about the reaction of aldehydes and ketones with acidified potassium dichromate (KCr,0,/H,SO,) is TRUE? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Ketones are oxidized to form carboxylic acids, but aldehydes do not react. Ketones are reduced to form alcohols, but aldehydes do not react. Aldehydes are oxidized to form carboxylic acids, but ketones do not react. Both aldehydes and ketones are reduced to form alcohols. Unanswered peptides 16 c) 6 с) Rank each group of compound in order of: i. Increasing boiling point. Explain. cyclohexanol, 2,3-dimethyl-1-butanol, 4-methyl-1-pentanol and 1-hexanol. ii. Decreasing solubility. Explain. pentanol, 2,3-pentanediol and pentaneDraw the line-angle formula of the enol formed in the following alkyne hydration reaction and then draw the structural formula of the carbonyl compound with which this enol is in equilibrium. -C=CH 1. (sia)2BH 2. NaOH/H₂O₂ an enol carbonyl compound • You do not have to consider stereochemistry. • Draw both the enol and the carbonyl forms. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate structures using the sign from the drop-down menu. ChemDoodleⓇ <
- What id the correct IUPAC name of this compound? Br OH • (25,4R)-2-bromo-4-pentanol O (25,45)-4-bromo-2-pentanol O (2R,45)-4-bromo-2-pentanol O (2R,4R)-4-bromo-2-pentanol O 25,4R)-4-bromo-2-pentanolWrite down the common (not IUPAC) names of the organic molecules that would be released if this molecule were hydrolyzed: CH2−O−C—(CH2);–CH=CH–CH2–CH=CH—(CH2)4—CH3 CH-O-C-(CH2)14-CH3 O 11 CH2−O−C— (CH2)14 — CH3 Separate each name with a comma. You will find useful information in the ALEKS Data resource. 1 010 Continue O a X 000 Y F8 F9 SubmiWhich of the following aldehydes has the highest solubility in water? A) CH₃CH₂C(=O)H B) CH₃CH₂CH₂CH₂C(=O)H C) CH₃(CH₂)₅C(=O)H D) CH₃(CH₂)₁₀C(=O)H E) All of these have equal solubility.