Diiodomethane → HCID 59557763, compound

To a stirred mixture of 4-bromo-1-chloro-2-(4-(3-(vinyloxy)propyl)benzyl)benzene (0.75 g, 2.04 mmol) and Et2Zn (5.11 mL, 5.11 mmol, 1.0 M in hexane) in dry ethyl ether (10 mL) was added diiodomethane (0.41 mL, 5.11 mmol) dropwise during 20 min at room temperature under argon. After stirring overnight, the reaction mixture was poured slowly into ice cold dilute hydrochloride solution with stirring. The mixture was extracted with ethyl acetate (3×20 mL). The combined organic layers were washed with water (20 mL) and then with brine (20 mL), and then dried over sodium sulfate. The residue was concentrated and purified by preparative TLC (eluent EA:PE=1:40) to obtain intermediate DH (0.64 g) as a light yellow oil. 1H NMR (CDCl3, 400 MHz): δ 7.32˜7.25 (m, 3H), 7.15 (d, 2H), 7.11 (d, 2H), 4.05 (s, 2H), 3.53 (t, J=6.4 Hz, 2H), 3.31˜3.26 (m, 1H), 2.68 (t, J=7.2 Hz, 2H), 1.93˜1.86 (m, 2H), 0.61˜0.45 (m, 4H).

1. additionthe reaction mixture was poured slowly into ice cold dilute hydrochloride solution
2. stirringwith stirring
3. extractionThe mixture was extracted with ethyl acetate (3×20 mL)
4. washThe combined organic layers were washed with water (20 mL)
5. dry with materialwith brine (20 mL), and then dried over sodium sulfate
6. concentrationThe residue was concentrated
7. custompurified by preparative TLC (eluent EA:PE=1:40)
8. customto obtain intermediate DH (0.64 g) as a light yellow oil

ORD record

ord-a0bfebd4d2d24a40ae7a2492c9741b4d

Source dataset

uspto-grants-2010_11

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07838499B2