تفاعل #50190

ord-e350b846d4a643868db506ad67763347

معادلة التفاعل

CCCC(=O)C(F)(F)CCC[C@@H]1[C@H]2CC(=O)O[C@H]2C[C@H]1OC1CCCCO1
(1S,5R,6R,7R)-6-(4,4-difluoro-5-oxooctyl)-7-tetrahydropyranyloxy-2-oxabicyclo[3.3.0]octan-3-one
[BH4-].[Na+]
sodium borohydride
→
CCCC(O)C(F)(F)CCC[C@@H]1[C@H]2CC(=O)O[C@H]2C[C@H]1OC1CCCCO1
title compound ( 33 )
CCCC(O)C(F)(F)CCC[C@@H]1[C@H]2CC(=O)O[C@H]2C[C@H]1OC1CCCCO1
(1S,5R,6R,7R)-6-{4,4-difluoro-5(RS)-hydroxyoctyl}-7-tetrahydropyranyloxy-2-oxabicyclo[3.3.0]-octan-3-one

المتفاعلات

CCCC(=O)C(F)(F)CCC[C@@H]1[C@H]2CC(=O)O[C@H]2C[C@H]1OC1CCCCO1
(1S,5R,6R,7R)-6-(4,4-difluoro-5-oxooctyl)-7-tetrahydropyranyloxy-2-oxabicyclo[3.3.0]octan-3-one
[BH4-].[Na+]
sodium borohydride

الكواشف

لا شيء

المذيبات

CO
methanol

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    workup.ADDITIONThe reaction mixture was treated in the conventional manner
  2. 2
    أخرىthe obtained crude product

الإجراء التجريبي

To a solution of (1S,5R,6R,7R)-6-(4,4-difluoro-5-oxooctyl)-7-tetrahydropyranyloxy-2-oxabicyclo[3.3.0]octan-3-one (32) (5.48 g) in methanol was added sodium borohydride (0.800 g) at 0° C. and the resulting mixture was stirred for 10 minutes. The reaction mixture was treated in the conventional manner and the obtained crude product was subjected to column chromatography to give the title compound (33). Yield: 5.46 g (99.5%).

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US05426115uspto-grants-1995_06