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 (3S-CIS)-(+)-2,3-DIHYDRO-3-ISOPROPYL-7A-METHYLPYRROLO[2,1-B] OXAZOL-5(7A H)-ONE

(3S-CIS)-(+)-2,3-DIHYDRO-3-ISOPROPYL-7A-METHYLPYRROLO[2,1-B] OXAZOL-5(7A H)-ONE synthesis

2synthesis methods
-

Yield:116910-11-3 68%

Reaction Conditions:

Stage #1: (3S,7aR)-3-isopropyl-7a-methyltetrahydropyrrolo[2,1-b][1,3]-oxazol-5-onewith n-butyllithium;lithium diisopropyl amide in tetrahydrofuran;hexane at -78; for 2 h;Inert atmosphere;
Stage #2: with Phenylselenyl bromide in tetrahydrofuran;hexane at -78 - 20;Inert atmosphere;
Stage #3: with pyridine;dihydrogen peroxide in dichloromethane at 0; for 3 h;Inert atmosphere;enantioselective reaction;

References:

Barra, Lena;Dickschat, Jeroen S. [European Journal of Organic Chemistry,2017,vol. 2017,# 31,p. 4566 - 4571]