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 4-BROMODIBENZOFURAN
89827-45-2

4-BROMODIBENZOFURAN synthesis

10synthesis methods
100124-06-9 Synthesis
Dibenzofuran-4-boronic acid

100124-06-9
402 suppliers
$6.00/1g

-

Yield:89827-45-2 89%

Reaction Conditions:

with tetrabutylammomium bromide;copper(ll) bromide in water at 100;Sealed tube;

Steps:

1. Preparation of aryl bromides
General procedure: To a stirred solution of arylboronic acids 1 (1 mmol), CuBr2 (335 mg, 1.5 mmol), TBAB (33 mg, 0.1 mmol) water (5mL) in a sealed tube for 5-12 h at 100 °C. After completion of the reaction as indicated by TLC, the mixture was extracted with EtOAc (2×5 mL). The organic layer was dried by anhydrous Na2SO4, concentrated in vacuo, and the residue was isolated by simply column chromatography (PE/EA 40:1-20:1) to afford products, respectively.

References:

Tang, Yan-Ling;Xia, Xian-Song;Gao, Jin-Chun;Li, Min-Xin;Mao, Ze-Wei [Tetrahedron Letters,2021,vol. 64,art. no. 152738] Location in patent:supporting information

FullText

4-BROMODIBENZOFURAN Related Search: