SPECIFICITY OF THE REACTION OF TETRANITROMETHANE WITH ALKENES
1269
(CH, Ph), 128.44 (2CH, Ph), 143.21 (C, Ph). Mass
spectrum, m/z (Irel, %): 221 (1) [M]+, 204 (2) [M –
OH], 186 (9), 175 (8) [M – NO2], 174 (20) [M –
HNO2], 173 (25), 145 (15), 133 (21), 105 (100), 98
(25), 91 (46), 83 (24), 77 (51), 70 (30), 55 (24). Found,
%: C 65.29; H 7.67; N 6.16. C12H15NO3. Calculated,
%: C 65.14; H 6.83; N 6.33.
63.01 (CH2O), 84.08 (CH2NO2), 90.01 (C), 94.71
(CH). Mass spectrum, m/z (Irel, %): 195 (1) [M –
CH2NO2], 154 (18) [M – C5H9O2], 111 (16), 85 (100)
(C5H9O), 41 (15) (cyclopropyl).
2-(2-Nitro-1-phenylcyclopentyloxy)tetrahydro-
2H-pyran (Xb). Yield 73%, Rf 0.5 (petroleum ether–
1
ethyl acetate, 4:1). H NMR spectrum, δ, ppm (a mix-
(5-Nitro-1-cyclopentenyl)benzene (VIIIa) [19].
ture of two diastereoisomers, A and B, at a ratio of
8:3): 1.32–2.53 m (12H + 12H, A, B), 3.19 m (1H,
CH2O, B), 3.48 m (1H, CH2O, A), 3.69 m (1H, CH2O,
B), 3.90 m (1H, CH2O, A), 4.35 m (1H, CHNO2, A),
4.48 m (1H, CHNO2, B), 5.15 m (1H, CH, A), 5.56 m
(1H, CH, B), 7.26–7.51 m (5H + 5H, Ph, A, B).
13C NMR spectrum, δC, ppm (A+B): 20.09 (CH2, A),
20.20 (CH2, B), 22.03 (CH2, B), 22.23 (CH2, A), 25.17
(CH2, B), 25.27 (CH2, A), 25.55 (CH2, B), 30.49 (CH2,
A), 30.79 (CH2, B), 30.85 (CH2, A), 31.85 (CH2, A),
32.10 (CH2, B), 63.48 (CH2O, B), 63.84 (CH2O, A),
91.54 (C, B), 92.69 (C, A), 94.15 (CHNO2, A), 94.90
(CHNO2, B), 95.90 (CH, A), 96.36 (CH, B), 127.98
(2CH, Ph), 128.06 (2CH, Ph), 128.12 (2CH, Ph),
128.39 (2CH, Ph), 128.75 (CH, Ph), 128.79 (CH, Ph),
135.06 (C, Ph), 137.12 (C, Ph). Found, %: C 66.01;
H 7.79; N 4.81. C16H21NO4. Calculated, %: C 65.98;
H 7.27; N 4.81.
1
Yield 26%, Rf 0.7 (CHCl3). H NMR spectrum, δ,
ppm: 2.01–3.05 m (4H, CH2), 5.96 m (1H, CH),
6.70 m (1H, CH), 7.29–7.50 m (5H, Ph). 13C NMR
spectrum, δC, ppm: 31.45 (CH2), 32.15 (CH2), 92.48
(CHNO2), 125.85 (2CH, Ph), 128.39 (CH, Ph), 129.31
(2CH, Ph), 133.13 (C), 136.72 (CH=), 138.72 (C).
(6-Nitro-1-cyclohexenyl)benzene (VIIIb) [20].
Yield 33%, mp 36°C; published data [18]: mp 36–
1
37°C; Rf 0.8 (CHCl3). H NMR spectrum, δ, ppm
(J, Hz): 1.68–2.50 m (6H, CH2), 5.56 m (1H, CHNO2),
3
6.42 d.d (1H, CH=, J = 3.6, 4.4), 7.31 m (5H, Ph).
13C NMR spectrum, δC, ppm: 17.51 (CH2), 25.63
(CH2), 29.19 (CH2), 83.24 (CHNO2), 125.70 (2CH,
Ph), 128.20 (CH, Ph), 128.88 (2CH, Ph), 131.49 (C),
134.08 (CH=), 139.02 (C).
(1RS,2RS,1'SR,2'RS)-2-(2-Nitro-1-phenylcyclo-
hexyloxy)-1-phenylcyclohexanol (IX). Yield 4%,
1
mp 194–195°C. H NMR spectrum, δ, ppm (J, Hz):
2-(2-Nitro-1-phenylcyclohexyloxy)tetrahydro-
1.00–2.00 m (15H, cyclohexane), 2.76 d.d.d (1H,
cyclohexane, J = 4.7, 14.5, 14.1), 3.89 m (1H, CHO),
4.70 m (1H, CHNO2), 7.27–7.52 m (10H, Ph), 10.13
(1H, OH).
2H-pyran (Xc). Yield 86%, Rf 0.6 (petroleum ether–
ethyl acetate, 4:1). H NMR spectrum, δ, ppm (a mix-
1
ture of two diastereoisomers, A and B, at a ratio of
3:1): 1.30–2.90 m (14H + 14H, A, B), 3.41 m (1H,
CH2O, A), 3.75 m (1H, CH2O, B), 3.90 m (1H, CH2O,
B), 3.98 m (1H, CH2O, A), 4.22 m (1H, CHNO2, A),
4.33 m (1H, CHNO2, B), 5.04 m (1H, CH, A), 5.32 m
(1H, CH, B), 7.23–7.55 m (5H + 5H, Ph, A, B).
13C NMR spectrum, δC, ppm (A+B): 19.32 (CH2, A),
19.43 (CH2, B), 20.40 (CH2, A), 20.46 (CH2, A), 20.56
(CH2, B), 20.77 (CH2, B), 25.24 (CH2, B), 25.35 (CH2,
A), 27.40 (CH2, A), 27.58 (CH2, A), 27.78 (CH2, A),
28.61 (CH2, B), 32.05 (CH2, A), 32.37 (CH2, B), 63.81
(CH2O, B), 64.25 (CH2O, A), 78.44 (C, A, B), 88.86
(CHNO2, B), 90.21 (CHNO2, A), 94.82 (CH, B), 95.55
(CH, A), 127.22 (2CH, Ph), 127.33 (2CH, Ph),
128.15 (2CH, Ph, A, B), 128.54 (2CH, Ph), 128.63
(2CH, Ph), 140.60 (2C, Ph). Found, %: C 67.31;
H 7.87; N 4.68. C17H23NO4. Calculated, %: C 66.86;
H 7.59; N 4.59.
Tetrahydropyranyl derivatives of alcohols V,
VIIa, and VIIb (general procedure). Alcohol V, VIIa,
or VIIb, 2 mmol, was added to a solution of 3 mmol of
dihydropyran and 0.01 mmol of pyridinium p-toluene-
sulfonate in 7 ml of methylene chloride. The mixture
was stirred for 4 h and left overnight. It was then
washed with a saturated aqueous solution of sodium
chloride (2×3 ml) and evaporated, and the product was
isolated from the residue by column chromatography.
2-(1,1-Dicyclopropyl-2-nitroethoxy)tetrahydro-
2H-pyran (Xa). Yield 76%, Rf 0.7 (petroleum ether–
1
ethyl acetate, 4:1). H NMR spectrum, δ, ppm (J, Hz):
0.03–1.93 m (16H), 3.51 m (1H, CH2O), 4.87 m (1H,
2
CH2O), 4.61 d (1H, CH2NO2, J = 10.2,), 4.76 d (1H,
CH2NO2, 2J = 10.2), 4.99 m (1H, CH). 13C NMR spec-
trum, δC, ppm: –0.99 (CH2, cyclopropyl), 1.12 (CH2,
cyclopropyl), 1.45 (CH2, cyclopropyl), 2.56 (CH2,
cyclopropyl), 13.66 (CH, cyclopropyl), 14.55 (CH,
cyclopropyl), 19.75 (CH2), 25.58 (CH2), 30.80 (CH2),
This study was performed under financial support
by the Russian Foundation for Basic Research (project
no. 00-15-97359).
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY Vol. 41 No. 9 2005