Concept explainers
(a)
Interpretation: The given compounds are to be arranged in order of increasing reactivity in electrophilic
Concept introduction: The replacement or substitution of one
(b)
Interpretation: An explanation corresponding to the statement that given reaction will not lead to the formation of product is to be stated and the synthesis of A from Benzene and B from phenol is to be predicted.
Concept introduction: The replacement or substitution of one functional group with another different functional group in any chemical reaction is termed as substitution reaction. The electron deficient chemical species that contains positive charge are known as electrophile. In electrophilic aromatic substitution reaction, electrophile takes the position of hydrogen atom by attacking the electron rich carbon atom of benzene.
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CNCT ORG CHEM 6 2020
- Compound A exhibits a peak in its 1H NMR spectrum at 7.6 ppm, indicating that it is aromatic. (a) How are the carbon atoms of the triple bonds hybridized? (b) In what type of orbitals are the π electrons of the triple bonds contained? (c) How many π electrons are delocalized around the ring in A?arrow_forwardIn each of the following reactions, two possible organic products can be formed. Draw both organic products in each case and then circle the one formed in greatest quantity in each case. HC (a) 1) NaH, 2) acid (b) CH,CH,OH (c) CH,CH,OH NH2 (d) Oarrow_forwardCompound P has molecular formula C5H9ClO2. Deduce the structure of P from its 1H and 13C NMR spectra.arrow_forward
- Rank the compounds in each group in order of increasing reactivity in electrophilic aromatic substitution: (a) C6H6, C6H5Cl, C6H5CHO; (b) C6H5CH3, C6H5NH2, C6H5CH2NH2.arrow_forward(a) A hydrocarbon isolated from fish oil and from plankton was identified as 2,6,10,14-tetramethyl-2-pentadecene. Write its structure.(b) Alkyl isothiocyanates are compounds of the type RN C S. Write a structural formula for allyl isothiocyanate, a pungent-smelling compound isolated from mustard.(c) Grandisol is one component of the sex attractant of the boll weevil. Write a structural formula for grandisol given that R in the structure shown is an isopropenyl group.arrow_forwardThe action of heating one mole of water (containing a trace of acid catalyst) on one mole of compound Y produces one mole of CH,COOH and one mole of CH, CH,NH, The structure of Y is: Select one: O CHCNCCH, CH,CH,NHCH,CH, OH CH CHNHCH,CH, O CHCH,CNHCH; O CH;CH NHÖCH;arrow_forward
- (a) Give an acceptable name for compound A. (b) Draw the organic products formed when A is treated with each reagent: [1] H3O+; [2] −OH, H2O; [3] CH3CH2CH2MgBr (excess), then H2O; [4] LiAlH4, then H2O.arrow_forwardCompound A is an aromatic compound with the molecular formula C8H8. When treated with excess BR2, compound A is converted into compound B, with the molecular formula C8H8BR2. Draw the structure of compound a. arrow_forwardCompound A (C6H12O2) reacts with water, acid, and heatto yield compound B (C5H10O2) and compound C (CH4O).Compound B is acidic. Deduce possible structures of compounds A, B, and Carrow_forward
- Following is a balanced equation for bromination of toluene.(a) Using the values for bond dissociation enthalpies given in Appendix 3,calculate ∆H0for this reaction.(b) Propose a pair of chain propagation steps and show that they add up to theobserved reaction.(c) Calculate ∆H0for each chain propagation step.(d) Which propagation step is rate-determininarrow_forwardDraw all of the substitution and elimination products formed from the given alkyl halide with each reagent: (a) CH3OH; (b) KOH. Indicate the stereochemistry around the stereogenic centers present in the products, as well as the mechanism by which each product is formed.arrow_forward(a) Draw the structure of the following :(i) p-Methylbenzaldehyde (ii) 4-Methylpent-3-en-2-one(b) Give chemical tests to distinguish between the following pairs of compounds :(i) Benzoic acid and Ethyl benzoate, (ii) Benzaldehyde and Acetophenone.(iii) Phenol and Benzoic acid.arrow_forward