成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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!

848841-59-8

5-(PROP-1-EN-2-YL)PYRIDIN-2-AMINE synthesis

3synthesis methods
1072-97-5 Synthesis
2-Amino-5-bromopyridine

1072-97-5
690 suppliers
$9.00/1g

76347-13-2 Synthesis
2-ISOPROPYLBORONIC ACID, PINACOL ESTER

76347-13-2
96 suppliers
$17.00/1g

5-(PROP-1-EN-2-YL)PYRIDIN-2-AMINE

848841-59-8
6 suppliers
inquiry

-

Yield:848841-59-8 880 mg

Reaction Conditions:

with potassium phosphate;(bis(tricyclohexyl)phosphine)palladium(II) dichloride in toluene; for 11 h;Reflux;Inert atmosphere;

Steps:

225 Reference Example 225
2-amino-5-(prop-1-en-2-yl)pyridine

A mixture of 2-amino-5-bromopyridine (1.00 g), 2-(propan-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.46 g), tripotassium phosphate (5.52 g) and dichlorobis(tricyclohexylphosphine)palladium (427 mg) in toluene (116 mL) was heated under reflux under a nitrogen atmosphere for 11 h
After cooling to room temperature, water was added, and the mixture was extracted twice with ethyl acetate.
The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated, and the obtained residue was purified by silica gel column chromatography (solvent; hexane/ethyl acetate=70/30 - 0/100) to give the title compound (880 mg).
MS(ESI)m/z; 135[M+H]+

References:

EP3372601,2018,A1 Location in patent:Paragraph 0588; 0589

1072-97-5 Synthesis
2-Amino-5-bromopyridine

1072-97-5
690 suppliers
$9.00/1g

126726-62-3 Synthesis
Isopropenylboronic acid pinacol ester

126726-62-3
181 suppliers
$38.50/1g

5-(PROP-1-EN-2-YL)PYRIDIN-2-AMINE

848841-59-8
6 suppliers
inquiry

848841-58-7 Synthesis
2-FLUORO-5-(PROP-1-EN-2-YL)PYRIDINE

848841-58-7
6 suppliers
inquiry

5-(PROP-1-EN-2-YL)PYRIDIN-2-AMINE

848841-59-8
6 suppliers
inquiry