Reaction #81726

ord-01ec06511c56483e9ef67f1fc79fd4d2

Reaction equation

COC(=O)c1ccc2c(c1)CC[C@@H]1[C@@H]2CC[C@]2(C)[C@@H](C(=O)c3ccccc3)CC[C@@H]12
methyl 17β-benzoyl-estra-1,3,5(10)-triene-3-carboxylate
O=C([O-])[O-].[K+].[K+]
K2CO3
O
water
→
C[C@]12CC[C@@H]3c4ccc(C(=O)O)cc4CC[C@H]3[C@@H]1CC[C@@H]2C(=O)c1ccccc1
title compound
C[C@]12CC[C@@H]3c4ccc(C(=O)O)cc4CC[C@H]3[C@@H]1CC[C@@H]2C(=O)c1ccccc1
17β-benzoyl-estra-1,3,5(10)-triene-3-carboxylic acid

Reactants

COC(=O)c1ccc2c(c1)CC[C@@H]1[C@@H]2CC[C@]2(C)[C@@H](C(=O)c3ccccc3)CC[C@@H]12
methyl 17β-benzoyl-estra-1,3,5(10)-triene-3-carboxylate
O=C([O-])[O-].[K+].[K+]
K2CO3
O
water

Reagents

None

Solvents

CO
methanol

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Temperatureis heated
  2. 2
    Temperatureat reflux for about 5 hours

Procedure

A mixture of methyl 17β-benzoyl-estra-1,3,5(10)-triene-3-carboxylate, K2CO3, water and methanol is heated at reflux for about 5 hours. Acidifications followed by conventional workup yields title compound.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05618806uspto-grants-1997_04