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Organic Chemistry
Explore questions in the Organic Chemistry category that you can ask Spark.E!
- adding chromic acid to secondary alcohol
- tertiary alcohol and concentrated H2SO4 and heat
- Reaction of a molecule with terminal MgBr and 1)CO2, 2)H3O+
- Carboxylic acid derivative with NH2 instead of OHPlus whatGives you R-CN
- how to turn an alkene into an alcohol (anti markvovov)
- what is crucial forfree radical substitution to happen
- Top and bottom temperatures of fractionating column:
- What's the difference between 2 members of a functional group?
- CA reactions w metal, carbonate, bases - all make a salt. Salts formed end with:
- 123) What compound is formed when ethylene oxide is reacted with n-pentyllithium followed by treatment with aqueous acid?A) 1-heptanolB) 2-heptanolC) heptanalD) 2-heptanoneE) pentanal
- 69) Di-n-pentyl ether can be converted to 1-bromopentane by treatment with HBr through essentially a(n) ________ mechanism.A) SN2B) SN1C) E2D) E1E) ring opening
- 70) Treatment of tetrahydrofuran with excess HBr results in the formation of what major organic product?A) 1-bromobutaneB) 1,2-dibromobutaneC) 1,4-dibromobutaneD) 1-bromopentaneE) 1,5-dibromopentane
- 107) What results when but-1-ene is subjected to the following reaction sequence: (1) Cl2, H2O, (2) NaOH, (3) H3O+?A) a meso epoxideB) a 1:1 mixture of enantiomeric epoxidesC) a meso diolD) a 1:1 mixture of enantiomeric diolsE) butan-2-ol
- 86) Which of the following is produced by the reaction of (CH3CH2)2S with CH3CH2I?A) CH3CH2CH2CH2IB) (CH3CH2)3S+ I-C) (CH3CH2)3SD) CH3SCH2CH2CH3E) CH3CH2SCH2CH2I
- 87) In biological systems, sulfonium salts such as SAM serve what function?A) esterifying agentsB) epoxidizing agentsC) alkylating agentsD) nucleophilic agentsE) crown ether agents
- 96) Magnesium monoperoxyphthalate is often used as a reagent in what process?A) reductive aminationB) dehydrationC) halohydrin formationD) epoxidationE) Williamson ether synthesis
- 102) Through what mechanism can a 1,2-halohydrin be converted into an epoxide?A) SN1B) SN2C) E2D) electrophilic additionE) polymerization
- 120) What is the major difference in the structure of the product formed in a Grignard reaction when an alkyl magnesium halide (Grignard reagent) is reacted with an epoxide rather than an aldehyde or ketone followed by work-up with H3O+?A) The alkyl group from the Grignard reagent will be bonded to the α-carbon of the alcohol product.B) The alkyl group from the Grignard reagent will be bonded to the β-carbon of the alcohol product.C) The alkyl group from the Grignard reagent will form an ether product rather than an alcohol product.D) Two equivalents of the Grignard will result in the bonding of two alkyl groups to the α-carbon of the alcohol product.E) The epoxide will protonate the Grignard reagent resulting an alkane product.
- 35) The Williamson ether synthesis occurs by the ________ mechanistic pathway.Answer: SN2
- 124) What compound is formed when methyloxirane is reacted with ethylmagnesium bromide followed by treatment with aqueous acid?A) 1-pentanolB) 2-pentanolC) 2-methyl-1-butanolD) 2-methyl-2-butanolE) 3-methyl-1-butanol