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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

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