天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 1,6-HEPTADIEN-4-OL
2883-45-6

1,6-HEPTADIEN-4-OL synthesis

11synthesis methods
-

Yield:2883-45-6 82%

Reaction Conditions:

in tetrahydrofuran at -10 - 0; for 4 h;Inert atmosphere;

Steps:

Hepta-1,6-dien-4-ol (7)
To a solution of 6 (2.3 g, 32.81 mmol) in dry THF (10 mL), vinylmagnesium bromide (39.37 mL, 1.0 M solution in THF) was slowly added at-10°C and stirred 4 hours at 0°C. Saturated NH4Cl solution (20 mL) was added to the mixture, which was slowly warmed to rt. The mixture was diluted with water (150 mL) and extracted with EtOAc (150 mL) two times. The combined organic layer was washed with brine, dried over anhydrous MgSO4, filtered, and evaporated in vacuo. The residue was purified by silica gel column chromatography (EtOAc/hexane, 1:10) to give 7 (3.02 g, 82%) as a colorless oil: 1H NMR(CDCl3, 300 MHz) δ 5.73-5.69 (m, 2H), 5.05-4.98(m, 4H), 3.31 (m, 1H), 2.13 (m, 4H); 13C NMR (CDCl3, 75 MHz) δ 140.4,115.7, 74.7, 43.5.

References:

Shen, Guang Huan;Hong, Joon Hee [Nucleosides, nucleotides and nucleic acids,2014,vol. 33,# 1,p. 1 - 17]

FullText

1,6-HEPTADIEN-4-OL Related Search: