List of used abbreviations - RosDok - Universität Rostock
List of used abbreviations - RosDok - Universität Rostock
List of used abbreviations - RosDok - Universität Rostock
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m/z (%): 254 (100), 239 (46), 225 (34), 211 (12), 178 (13), 165 (15), 91 (8). HRMS<br />
(EI): calcd for C16H14OS [M + ]: 254.07799, found 254.07586.<br />
S<br />
Me Me<br />
Cl<br />
2-Chloro-1,3-dimethylthioxanthone (6b): Starting with 5c (114<br />
mg, 0.4 mmol) and conc. sulfuric acid, 6b was isolated as a<br />
highly viscous oil (114 mg, 97%). 1 H NMR (250 MHz, CDCl3): δ =<br />
2.38 (s, 3 H, CH3), 2.83 (s, 3 H, CH3), 7.16 (s, 1 H, ArH), 7.45<br />
(m, 3 H, ArH), 8.31 (dd, 1 H, 3 J = 7.9, 4 J = 2.0 Hz, ArH). 13 C NMR<br />
(62 MHz, CDCl3): δ = 19.8, 21.4 (CH3), 125.1 (2C, ArCH), 126.2 (ArCH), 127.3 (C),<br />
129.6, 131.7 (ArCH), 131.8, 135.0, 135.3, 136.7, 141.7, 141.9, 182.4 (C). IR (neat):<br />
ν̃ = 3375 (w), 2978 (s), 1734 (m), 1675 (m), 1590 (m), 1490 (m), 1319 (m), 1219 (m),<br />
1176 (m), 1029 (m), 751 (w) 690 (m) cm −1 . GC-MS (EI, 70 eV): m/z (%): 276 (M + ,<br />
37 Cl, 37), 274 (M + , 35 Cl, 41), 267 (100), 105 (89), 77 (34). HRMS (EI): calcd for<br />
C15H11OClS [M + , 35 Cl]: 274.06127, found 274.06139.<br />
S<br />
O<br />
O<br />
Me nPr<br />
1-Propyl-3-methylthioxanthone (6c): Starting with 5e (50 mg,<br />
0.16 mmol) and conc. sulfuric acid, 6c was isolated as a highly<br />
viscous oil (42 mg, 95%). 1 H NMR (250 MHz, CDCl3): δ = 0.90<br />
(t, 3 H, J = 7.4, CH3), 1.60 (m, 2 H, CH2), 2.55 (t, H, J = 7.4,<br />
CH2), 2.81 (m, 3 H, CH3), 7.10 (S, 1 H, ArH), 7.38 (m, 3 H, ArH), 8.25 (dd, 1 H, 3 J =<br />
7.2, 4 J =1.87 Hz, ArH). 13 C NMR (62 MHz, CDCl3): δ = 13.8, 23.4 (CH3), 24.8, 37.6<br />
(CH2), 123.6, 125.1, 125.9 (ArCH), 127.2 (C), 129.6, 131.0, 131.5 (ArCH), 132.1,<br />
54