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1 Supporting nformation for Difunctionalization of alkenes with iodine and tert-butyl hydroperoxide (TBHP) at room temperature for the synthesis of 1-(tert-butylperoxy)-2-iodoethanes Hao Wang 1, Cui Chen 2, Weibing Liu*,2 and Zhibo Zhu*,1 Address: 1 ntegrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, , P. R. China. Fax: ; Tel: and 2 College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming , P. R. China. Fax: ; Tel: Zhibo Zhu - zhuzb676@smu.edu.cn; Weibing Liu - lwb409@gdupt.edu.cn. *Corresponding author Full experimental details and copies of NMR spectral data General nformation. All the reactions were carried out at room temperature for 24 h in a round-bottom flask equipped with a magnetic stir bar. Unless otherwise stated, all reagents and solvents were purchased from commercial suppliers and used without further purification. 1 H NMR and 13 C NMR spectra were recorded on a 400 MHz spectrometer in solutions of CDCl 3 S1
2 using tetramethylsilane as the internal standard; δ values are given in ppm, and coupling constants (J) in Hz. HR-MS were obtained on a Q-TF micro spectrometer. Typical procedure: 1-(1-(tert-butylperoxy)-2-iodoethyl)benzene (2a). A mixture of styrene (1a) (208 mg, 2.0 mmol), 2 (508 mg, 2.0 mmol), TBHP (774 mg, 6.0 mmol, 70% in water), and toluene (2.0 ml) was added successively in a round-bottom flask, and the resulting solution was stirred for 24 h at room temperature. The mixture was purified by column chromatography on silica gel to afford product 2a with PE/ethyl acetate = 20/1 as the eluent. 1-(1-(tert-Butylperoxy)-2-iodoethyl)benzene (2a) 1 Yield: 79%; 1 H NMR (CDCl 3, 400 Hz) δ 7.40 (m, 5H), 4.88 (d, J = 6.0 Hz, 1H), 4.55 (dd, J = 7.2 Hz, J = 6.8 Hz, 1H), 3.64 (dd, J = 10.4 Hz, J = 6.4 Hz, 1H), 3.64 (dd, J = 9.6 Hz, J = 7.2 Hz, 1H), 1.28 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 138.2, 128.6, 128.4, 127.1, 85.3, 81.1, 26.5, (1-(tert-Butylperoxy)-2-iodoethyl)-4-methylbenzene (2b) Yield: 75%; Pale yellow oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.33 (d, J = 8.0 Hz, 2H), 7.27 (d, J = 8.0 Hz, 2H), 4.55 (dd, J = 7.2 Hz, J = 6.8 Hz, 1H), 3.74 (dd, J = 10.4 Hz, J = 6.0 Hz, 1H), 3.64 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 2.44 (s, 3H), 1.37 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 138.5, 135.2, 129.2, 127.2, 85.3, 81.0, 26.6, 21.4, 6.76; HRMS (ES): calcd for C 13 H 19 Na 2 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-1,4-dimethylbenzene (2c) Yield: 76%; Colorless oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.20 (s, 1H), 7.27 (m, 2H), 5.33 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.67 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.41 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 2.40 (s, 3H), 2.37 (s, 3H), 1.32 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 136.2, 135.5, 132.9, 130.4, 129.2, 126.7, 81.8, 80.9, 26.6, 21.2, 19.1, 5.75; HRMS (ES): calcd for C 14 H 21 Na 2 : [M+Na + ] , found S2
3 (1-(tert-Butylperoxy)-2-iodoethyl)-4-methoxybenzene (2d) Yield: 71%; Pale yellow oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.29 (d, J = 8.0 Hz, 2H), 6.92 (d, J = 8.0 Hz, 2H), 4.99 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.83 (s, 3H), 3.70 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.39 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 1.28 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 159.8, 130.0, 128.5, 113.8, 85.1, 81.0, 55.2, 26.4, 6.71; HRMS (ES): calcd for C 13 H 19 na 3 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-4-chlorobenzene (2e) Cl Yield: 82%; Pale yellow oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.38 (d, J = 8.0 Hz, 2H), 7.30 (d, J = 8.0 Hz, 2H), 5.00 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.59 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.36 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 1.28 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 136.8, 134.4, 128.7, 128.4, 84.5, 81.2, 26.5, 5.91; HRMS (ES): calcd for C 12 H 16 ClNa 2 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-3-chlorobenzene (2f) Cl Yield: 85%; Pale yellow oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.36 (s, 1H), 7.31 (m, 2H), 7.25 (m, 1H), 4.98 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.57 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.36 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 1.29 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 140.5, 134.3, 129.7, 128.7, 127.1, 125.2, 84.5, 81.3, 26.5, 5.59; HRMS (ES): calcd for C 12 H 16 ClNa 2 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-2-chlorobenzene (2g) Cl Yield: 79%; Pale yellow oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.52 (dd, J = 2.0 Hz, J = 7.6 Hz, 1H), 7.35 (m, S3
4 3H), 4.45 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.54 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.39 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 1.33 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 136.7, 132.7, 129.5, 129.4, 127.8, 126.9, 81.4, 80.9, 26.5, 4.41; HRMS (ES): calcd for C 12 H 16 ClNa 2 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-4-fluorobenzene (2h) F Yield: 85%; Colorless oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.32 (d, Hz, J = 7.6 Hz, 2H), 7.07 (d, Hz, J = 7.6 Hz, 2H), 5.00 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.62 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.36 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 1.27 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ (d, 1 J C-F = Hz), (d, 4 J C-F = 12.8 Hz), (d, 3 J C-F = 32.8 Hz), (d, 2 J C-F = 85.6 Hz), 84.6, 81.1, 26.5, 6.2; HRMS (ES): calcd for C 12 H 16 FNa 2 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-3-fluorobenzene (2i) F Yield: 82%; Colorless oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.33 (m, 1H), 7.08 (m, 3H), 5.00 (dd, J = 7.0 Hz, J = 6.8 Hz, 1H), 3.56 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.36 (dd, J = 10.4 Hz, J = 7.6 Hz, 1H), 1.28 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ (d, 1 J C-F = Hz), (d, 3 J C-F = 28.0 Hz), (d, 3 J C-F = 32.4 Hz), (d, 4 J C-F = 11.6 Hz), (d, 2 J C-F = 84.0 Hz), (d, 2 J C-F = 84.0 Hz), 84.4, 81.2, 26.5, 5.6; HRMS (ES): calcd for C 12 H 16 FNa 2 : [M+Na + ] , found (2-(tert-Butylperoxy)-1-iodopropan-2-yl)-4-methylbenzene (2j) Yield: 77%; Colorless oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.41 (d, J = 8.0 Hz, 2H), 7.24 (d, J = 8.0 Hz, 2H), 3.70 (s, 2H), 2.43 (s, 3H), 1.86 (s, 3H), 1.38 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 139.3, 137.2, 128.9, 125.9, 81.1, 79.7, 26.8, 24.4, 21.2, 15.8; HRMS (ES): calcd for C 14 H 21 Na 2 : [M+Na + ] , found (2-(tert-Butylperoxy)-1-iodopropan-2-yl)benzene (2k) S4
5 Yield: 77%; Colorless oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.54 (d, J = 8.0 Hz, 2H), 7.45 (t, J = 8.0 Hz, 2H), 7.38 (t, J = 8.0 Hz, 1H), 3.73 (s, 2H), 1.89 (s, 3H), 1.41 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 142.3, 128.2, 127.6, 125.9, 81.2, 79.7, 26.9, 24.5, 15.6; HRMS (ES): calcd for C 13 H 19 Na 2 : [M+Na + ] , found (tert-Butylperoxy)-2-iodo-1,1-diphenylethane (2l) 1 Yield: 83%; 1 H NMR (CDCl 3, 400 Hz) δ 7.44 (m, 4H), 7.35 (m, 6H), 4.39 (s, 2H), 1.35 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 142.6, 127.8, 127.4, 127.1, 84.4, 79.9, 26.9, (3-(tert-Butylperoxy)-4-iodobutyl)benzene (2m) Yield: 80%; Pale yellow oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.29 (d, J = 7.2 Hz, 2H), 7.21 (m, 3H), 2.36 (m, 1H), 3.83 (m, 1H), 3.48 (m, 1H), 3.36 (m, 1H), 2.74 (m, 2H), 1.98 (m, 2H), 1.28 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 141.3, 128.4, 128.3, 126.0, 81.1, 80.4, 34.3, 31.6, 26.6, 8.92; HRMS (ES): calcd for C 14 H 21 Na 2 : [M+Na + ] , found (tert-Butylperoxy)-3-ethyl-2-iodopentane (2n) Yield: 81%; range oil; 1 H NMR (CDCl 3, 400 Hz) δ 4.66 (q, J = 7.6 Hz, 1H), 1.96 (s, 3H), 1.78 (m, 4H), 1.23 (s, 9H), 0.95 (m, 6H); 13 C NMR (CDCl 3, 100 Hz) δ 83.6, 78.7, 35.9, 27.1, 26.7, 26.2, 23.9, 8.69, 8.57; HRMS (ES): calcd for C 11 H 23 Na 2 : [M+Na + ] , found (tert-Butylperoxy)-1-iodooctane (2o) S5
6 Yield: 70%; range oil; 1 H NMR (CDCl 3, 400 Hz) δ 3.77 (m, 1H), 3.47 (dd, J = 10.0 Hz, J = 3.2 Hz, 1H), 3.32 (dd, J = 10.0 Hz, J = 3.2 Hz, 1H), 1.61 (m, 3H), 1.32 (m, 7H), 1.25 (s, 9H), 0.89 (t, J = 7.6 Hz, 3H); 13 C NMR (CDCl 3, 100 Hz) δ 81.9, 80.3, 32.5, 31.6, 29.1, 26.5, 25.4, 22.5, 14.0, 9.34; HRMS (ES): calcd for C 12 H 25 Na 2 : [M+Na + ] , found (2-(tert-Butylperoxy)-3-iodopropyl)benzene (2p) Yield: 78%; range oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.31 (m, 5H), 4.04 (m, 1H), 3.43 (dd, J = 10.0 Hz, J = 3.2 Hz, 1H), 3.31 (dd, J = 10.0 Hz, J = 3.2 Hz, 1H), 3.02 (dd, J = 14.0 Hz, J = 6.8 Hz, 1H), 2.92 (dd, J = 14.0 Hz, J = 6.8 Hz, 1H), 1.20 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 137.2, 129.5, 128.3, 126.6, 83.0, 80.7, 38.5, 26.4, 8.13; HRMS (ES): calcd for C 13 H 19 Na 2 : [M+Na + ] , found (1-(tert-Butylperoxy)-2-iodoethyl)-4-benzylbenzene (2q) Yield: 83%; Colorless oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.63 (d, J = 7.6 Hz, 4H), 7.46 (m, 4H), 7.38 (t, J = 7.6 Hz, 1H), 5.10 (t, J = 6.8 Hz, 1H), 3.70 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 3.46 (dd, J = 10.0 Hz, J = 6.4 Hz, 1H), 1.33 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 141.5, 140.6, 137.2, 128.8, 127.5, 127.4, 127.2, 127.1, 85.1, 81.2, 26.5, 6.27; HRMS (ES): calcd for C 18 H 21 Na 2 : [M+Na + ] , found tert-Butyl-4-(1-(tert-butylperoxy)-2-iodoethyl)benzene (2r) Yield: 82%; range oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.42 (d, J = 7.6 Hz, 2H), 7.31 (d, J = 7.6 Hz, 2H), 5.05 (t, J = 6.8 Hz, 1H), 3.68 (dd, J = 10.0 Hz, J = 3.6 Hz, 1H), 3.43 (dd, J = 10.0 Hz, J = 3.6 Hz, 1H), 1.37 (s, 9H), 1.32 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 151.4, 135.1, 126.8, 125.4, 85.2, 81.0, 34.6, 31.4, 26.6, 6.58; HRMS (ES): calcd for C 16 H 25 Na 2 : [M+Na + ] , found S6
7 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-(chloromethyl)benzene (2s) Cl Yield: 76%; range oil; 1 H NMR (CDCl 3, 400 Hz) δ 7.41 (d, J = 7.6 Hz, 2H), 7.36 (d, J = 7.6 Hz, 2H), 5.03 (t, J = 6.8 Hz, 1H), 4.59 (s, 2H), 3.68 (dd, J = 10.0 Hz, J = 6.0 Hz, 1H), 3.43 (dd, J = 10.0 Hz, J = 6.0 Hz, 1H), 1.29 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 138.6, 137.7, 128.7, 127.4, 84.8, 81.2, 45.9, 26.5, 6.14; HRMS (ES): calcd for C 13 H 18 ClNa 2 : [M+Na + ] , found (tert-Butylperoxy)-2-iodo-1-methylcyclopentane (2t) Yield: 80%; Pale red oil; 1 H NMR (CDCl 3, 400 Hz) δ 4.66 (d, J = 6.0 Hz, 1H), 2.44 (m, 1H), 2.04 (m, 1H), 1.84 (m, 3H), 1.69 (m, 1H), 1.55 (s, 3H), 1.19 (s, 9H); 13 C NMR (CDCl 3, 100 Hz) δ 90.7, 78.7, 37.4, 36.6, 33.3, 26.6, 25.2, 22.5; HRMS (ES): calcd for C 10 H 19 Na 2 : [M+Na + ] , found S7
8 NMR spectra 1-(1-(tert-Butylperoxy)-2-iodoethyl)benzene (2a) S8
9 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-methylbenzene (2b) S9
10 2-(1-(tert-Butylperoxy)-2-iodoethyl)-1,4-dimethylbenzene (2c) S10
11 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-methoxybenzene (2d) S11
12 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-chlorobenzene (2e) S12
13 1-(1-(tert-Butylperoxy)-2-iodoethyl)-2-chlorobenzene (2g) S13
14 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-fluorobenzene (2h) S14
15 1-(1-(tert-Butylperoxy)-2-iodoethyl)-3-fluorobenzene (2i) S15
16 1-(2-(tert-Butylperoxy)-1-iodopropan-2-yl)-4-methylbenzene (2j) S16
17 1-(2-(tert-Butylperoxy)-1-iodopropan-2-yl)benzene (2k) S17
18 1-(tert-Butylperoxy)-2-iodo-1,1-diphenylethane (2l) S18
19 1-(3-(Tert-butylperoxy)-4-iodobutyl)benzene (2m) S19
20 3-(tert-Butylperoxy)-3-ethyl-2-iodopentane (2n) S20
21 2-(tert-Butylperoxy)-1-iodooctane (2o) S21
22 1-(2-(tert-Butylperoxy)-3-iodopropyl)benzene (2p) S22
23 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-benzylbenzene (2q) S23
24 1-tert-Butyl-4-(1-(tert-butylperoxy)-2-iodoethyl)benzene (2r) S24
25 1-(1-(tert-Butylperoxy)-2-iodoethyl)-4-(chloromethyl)benzene (2s) S25
26 1-(tert-Butylperoxy)-2-iodo-1-methylcyclopentane (2t) S26
27 S27
28 References [1] Bloodworth, A. J.; Bowyer, K. J. J. rg. Chem. 1986, 51, S28
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