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!

ChemicalBook CAS DataBase List L-Alanine Isopropyl Ester
39825-33-7

L-Alanine Isopropyl Ester synthesis

2synthesis methods
L-alanine isopropyl ester hydrochloride can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process. It can be synthesized by esterification of L-Alanine and Isopropyl alcohol.
-

Yield:39825-33-7 87%

Reaction Conditions:

with hydrogenchloride;thionyl chloride at 0 - 20;

Steps:

11.a (S)-isopropyl 2-aminopropanoate (I-11a)
SOCl2 (29 mL, 400 mmcl) was added dropwise at 0 °C to a suspension of the HCl salt of L-alanine (17.8 g, 200 mmcl) in isopropanol (700 mL). The suspension was stirred at roomtemperature over night, then concentrated, which gave the title compound (29.2 g, 87%).

References:

MEDIVIR AB;KALAYANOV, Genadiy;PINHO, Pedro;WESTERLIND, Hans;WIKTELIUS, Daniel;W?HLING, Horst WO2015/56213, 2015, A1 Location in patent:Page/Page column 66

FullText

L-Alanine Isopropyl Ester Related Search: