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 CIS-5-BENZYL-2-BOC-HEXAHYDROPYRROLO[3,4-C]PYRROLE
370879-56-4

CIS-5-BENZYL-2-BOC-HEXAHYDROPYRROLO[3,4-C]PYRROLE synthesis

3synthesis methods
-

Yield:370879-56-4 80%

Reaction Conditions:

with N-ethyl-N,N-diisopropylamine in tetrahydrofuran at 20; for 5 h;

Steps:

5.3

To a solution of (3aR,6a5)-2-benzyloctahydropyrrolo[3,4-c]pyrrole (10 g, 49.5 mmol) in THF (100 mL) was added DIPEA (12.8 g, 99 mmol) and Boc2O (10.8 g, 49.5 mmol). The reaction mixture was stirred at ambient temperature for 5 h before diluting with ethyl acetate. The reaction mixture was washed with aq. NaHCO3 and brine. The organic layer was dried over anhydroussodium sulfate, filtered and evaporated to provide (3aR,6a5)-tert-butyl 5- benzylhexahydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate as a yellow oil (12 g, 80 %).

References:

WO2015/120049,2015,A1 Location in patent:Page/Page column 139

CIS-5-BENZYL-2-BOC-HEXAHYDROPYRROLO[3,4-C]PYRROLE Related Search: