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!

51632-06-5

5-HYDROXYMETHYLINDANE synthesis

10synthesis methods
30084-91-4 Synthesis
INDAN-5-CARBOXALDEHYDE

30084-91-4
106 suppliers
$74.00/250mg

-

Yield:51632-06-5 96%

Reaction Conditions:

Stage #1: indan-5-carbaldehydewith sodium tetrahydroborate in ethanol at 0; for 0.5 h;
Stage #2: with hydrogenchloride in water; pH=2;

Steps:

10.2

To a stirred solution of Indan-5-carbaldehyde (2 g, 13.69 mmol) in EtOH (20 ml) at 0 0C was added sodium borohydride (676 mg, 17.80 mmol). The reaction was continued for 30 min. and monitored by thin layer chromatography. The reaction mixture was concentrated, acidified by addition of 2N HCl to pH 2. It was extracted with dichloromethane (2x 25 ml). The combined organic layer was washed with brine (25 ml), dried over anhydrous sodium sulfate and concentrated under vacuo to afford colorless oil (1.95 g , 96 %).

References:

WO2009/109999,2009,A1 Location in patent:Page/Page column 60

5-HYDROXYMETHYLINDANE Related Search: