Question

Write a structural formula for each compound. (a) Isopropyl alcohol (b) Propylene glycol (c) 5 -Methyl-2-hexanol (d) 2 -Methyl-2-propyl-1,3-propanediol (e) 1-Chloro-2-hexanol (f) cis-3-Isobutylcyclohexanol (g) 2,2-Dimethyl-1-propanol (h) 2-Mercaptoethanol (i) Allyl alcohol (j) trans-2-Vinylcyclohexanol (k) (Z) -5-Methyl-2-hexen-1-ol (1) 2-Propyn-1-ol (m) 3-Chloro-1,2-propanediol (n) cis-3-Pentene-1-ol

Short answer

Question: Give the structural formulas for the following organic compounds: (a) Isopropyl alcohol (b) Propylene glycol (c) 5-Methyl-2-hexanol (d) 2-Methyl-2-propyl-1,3-propanediol (e) 1-Chloro-2-hexanol (f) cis-3-Isobutylcyclohexanol (g) 2,2-Dimethyl-1-propanol (h) 2-Mercaptoethanol (i) Allyl alcohol (j) trans-2-Vinylcyclohexanol (k) (Z)-5-Methyl-2-hexen-1-ol (l) 2-Propyn-1-ol (m) 3-Chloro-1,2-propanediol (n) cis-3-Pentene-1-ol Answer: (a) CH3-CH(OH)-CH3 (b) CH2(OH)-CH(OH)-CH3 (c) CH3-CH2-CH(OH)-CH2-CH(CH3)-CH3 (d) CH3-CH2-CH(OH)-C(CH3)(CH3)-CH2(OH) (e) Cl-CH2-CH(OH)-CH2-CH2-CH2-CH3 (f) See the structural formula drawn in the solution above. (g) CH3-CH(OH)-C(CH3)2 (h) HS-CH2-CH2(OH) (i) OH-CH2-CH=CH2 (j) See the structural formula drawn in the solution above. (k) CH3-CH2-CH=CH-CH(CH3)-CH2OH (Z configuration) (l) CH3-C≡C-OH (m) CH2(OH)-CH(OH)-CH2Cl (n) CH2(OH)-CH2-CH=CH-CH3 (cis configuration)

Step-by-step solution

(a) Isopropyl alcohol

Isopropyl alcohol is an alcohol (OH group) attached to an isopropyl radical (CH3-CH-). To write the structural formula: CH3-CH(OH)-CH3

(b) Propylene glycol

Propylene glycol is a diol (two OH groups) derived from propylene. To write the structural formula: CH2(OH)-CH(OH)-CH3

(c) 5-Methyl-2-hexanol

5-Methyl-2-hexanol is a hexanol (6-carbon chain with an OH group) with a methyl group (CH3) on the 5th carbon. To write the structural formula: CH3-CH2-CH(OH)-CH2-CH(CH3)-CH3

(d) 2-Methyl-2-propyl-1,3-propanediol

2-Methyl-2-propyl-1,3-propanediol is a propanediol (3-carbon chain with two OH groups) with a methyl and propyl group at the 2nd carbon. To write the structural formula: CH3-CH2-CH(OH)-C(CH3)(CH3)-CH2(OH)

(e) 1-Chloro-2-hexanol

1-Chloro-2-hexanol is a hexanol (6-carbon chain with an OH group) with a chlorine atom on the 1st carbon. To write the structural formula: Cl-CH2-CH(OH)-CH2-CH2-CH2-CH3

(f) cis-3-Isobutylcyclohexanol

cis-3-Isobutylcyclohexanol is a cyclohexanol (cyclohexane with an OH group) with an isobutyl group on carbon 3 in a cis configuration. To write the structural formula: (OH) (CH3) | | | -CH | | -CH-CH-CH-CH- | | -CH-CH-CH2- (with CH3)-(CH2-)-(CH3) groups in cis configuration with -OH group

(g) 2,2-Dimethyl-1-propanol

2,2-Dimethyl-1-propanol is a propanol (3-carbon chain with an OH group) with two methyl groups on the 2nd carbon. To write the structural formula: CH3-CH(OH)-C(CH3)2

(h) 2-Mercaptoethanol

2-Mercaptoethanol is an ethanol (two-carbon chain with an OH group) with a thiol (SH group) on the 2nd carbon. To write the structural formula: HS-CH2-CH2(OH)

(i) Allyl alcohol

Allyl alcohol is an alcohol (OH group) attached to an allyl group (CH2-CH=CH2). To write the structural formula: OH-CH2-CH=CH2

(j) trans-2-Vinylcyclohexanol

trans-2-Vinylcyclohexanol is a cyclohexanol with a vinyl group (CH=CH2) on the 2nd carbon in a trans configuration. To write the structural formula: (OH) (CH3) | | | -CH | | -CH-CH-CH-CH- | | -CH-CH-(=CH2) (trans configuration with -OH group)

(k) (Z)-5-Methyl-2-hexen-1-ol

(Z)-5-Methyl-2-hexen-1-ol is a hexenol with an OH group on the 1st carbon and a methyl group on the 5th carbon. The double bond has a Z stereochemical configuration. To write the structural formula: CH3-CH2-CH=CH-CH(CH3)-CH2OH (Z configuration)

(i) 2-Propyn-1-ol

2-Propyn-1-ol is a propynol (3-carbon chain with an OH group and a triple bond). To write the structural formula: CH3-C≡C-OH

(m) 3-Chloro-1,2-propanediol

3-Chloro-1,2-propanediol is a propanediol (3-carbon chain with two OH groups) with a chlorine atom on the 3rd carbon. To write the structural formula: CH2(OH)-CH(OH)-CH2Cl

(n) cis-3-Pentene-1-ol

cis-3-Pentene-1-ol is a pentene with an OH group on the 1st carbon and a double bond on carbon-3 in a cis configuration. To write the structural formula: CH2(OH)-CH2-CH=CH-CH3 (cis configuration)