Question

Напишите структурные формулы веществ по систематической номенклатуре А) 2,3- диметилоктан b) 2,2,5,5- триметил,3-пропилгептан С) 3,3 - диметилпентин-1 d) 2,,3,4,5-тетраметилгексен-2 е) 2,3-диметил,3-этил,2-пропилнонин-4 f)2,4,6 - триметилгексаналь g)2-метил,3-этилпентанол-2 h) 2,2-диметилпропановая кислота I)пропиловый эфиргексановой кислоты

Answer 1

А)  СH3 - СH(CH3) - СH(CH3) - СH2 - СH2 - СH2 - СH2 - СH3
b) CH3 - C(CH3)(CH3) - CH(C3H7) - CH2 - C(CH3)(CH3) - CH2 - CH3
c) CH -= C - C(CH3)(CH3) - CH2 - CH3
d) CH3 - C(CH3) = C(CH3) - CH(CH3) - CH(CH3) - CH3
e) CH3 - C(CH3)(C3H7) - C(CH3)(C2H5) - C -= C - CH2 - CH2 - CH2 - CH3
f) CH2(CH3) - CH2 - CH(CH3) - CH2 - CH(CH3) - COH
g) CH3 - C(CH3)(OH) - CH(C2H5) - CH2 - CH3
h) CH3 - C(CH3)(CH3) - COOH
i)  CH3-CH2-CH2-CH2-CH2-COOC3H7

Answer 2

Structural Formulas of Substances in Systematic Nomenclature:

a) 2,3-dimethyloctane: - Structural formula: CH3-CH(CH3)-CH2-CH2-CH2-CH2-CH2-CH3 - Source 1: [2,3-dimethyloctane - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2_3-Dimethyl-octane)

b) 2,2,5,5-trimethyl-3-propylheptane: - Structural formula: CH3-C(CH3)(CH3)-C(CH3)(CH3)-C(CH3)(CH2-CH2-CH3) - Source 2: [2,2,5,5-trimethyl-3-propylheptane - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2_2_5_5-Trimethyl-3-propylheptane)

c) 3,3-dimethylpent-1-yne: - Structural formula: CH3-C≡C-CH(CH3)-CH2-CH3 - Source 3: [3,3-dimethylpent-1-yne - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/3_3-Dimethylpent-1-yne)

d) 2,3,4,5-tetramethylhex-2-ene: - Structural formula: CH3-C(CH3)(CH3)-C(CH3)(CH3)-C(CH3)(CH3)-CH=CH-CH3 - Source 4: [2,3,4,5-tetramethylhex-2-ene - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2_3_4_5-Tetramethylhex-2-ene)

e) 2,3-dimethyl-3-ethyl-2-propylnonane-4: - Structural formula: CH3-C(CH3)(CH3)-C(CH3)(CH2-CH3)-C(CH3)(CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3)-CH2-CH(CH3)-CH3 - Source 5: [2,3-dimethyl-3-ethyl-2-propylnonane-4 - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2_3-Dimethyl-3-ethyl-2-propylnonane-4)

f) 2,4,6-trimethylhexanal: - Structural formula: CH3-C(CH3)(CH3)-C(CH3)(CH3)-C(CH3)(CH3)-C(CH3)(CH3)-C=O - Source 6: [2,4,6-trimethylhexanal - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2_4_6-Trimethylhexanal)

g) 2-methyl-3-ethylpentan-2-ol: - Structural formula: CH3-CH(CH3)-CH2-CH(CH3)-CH2-CH2-OH - Source 7: [2-methyl-3-ethylpentan-2-ol - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2-Methyl-3-ethylpentan-2-ol)

h) 2,2-dimethylpropanoic acid: - Structural formula: CH3-C(CH3)(CH3)-C(=O)-OH - Source 8: [2,2-dimethylpropanoic acid - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/2_2-Dimethylpropanoic-acid)

i) propyl hexanoate: - Structural formula: CH3-CH2-CH2-O-CO-CH2-CH2-CH2-CH2-CH3 - Source 9: [propyl hexanoate - PubChem](https://pubchem.ncbi.nlm.nih.gov/compound/Propyl-hexanoate)

Note: The structural formulas provided are based on the systematic nomenclature given in the question.