Dichloromethane → 4-{[(S)-6-methylphenanthridin-5(6H)-yl]sulfonyl}phenol

HRID 2181786Notes

Reaction equation

HRID 2181786 reaction equation
C[O:2][C:3]1[CH:8]=[CH:7][C:6]([S:9]([N:12]2[C@@H:25]([CH3:26])[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[C:18]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]2=3)(=[O:11])=[O:10])=[CH:5][CH:4]=1.C1CCCCC=1.B(Br)(Br)Br.ClCCl>>[CH3:26][C@H:25]1[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[C:18]2[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=2[N:12]1[S:9]([C:6]1[CH:5]=[CH:4][C:3]([OH:2])=[CH:8][CH:7]=1)(=[O:11])=[O:10]

Participants

5

Reactant 4

HCID 6344DichloromethaneHCID 8079CyclohexeneHCID 25134Boron tribromideHCID 58597406(S)-5-(4-Methoxy-benzenesulfonyl)-6-methyl-5,6-dihydrophenanthridine

Product 1

HCID 104505944-{[(S)-6-methylphenanthridin-5(6H)-yl]sulfonyl}phenol

Procedure

The title compound was prepared from (S)-5-[(4-methoxyphenyl)sulfonyl]-6-methyl-5,6-dihydrophenanthridine (0.32 g, 1.02 mmol), cyclohexene (0.26 mL, 2.54 mmol), and 1.0 M boron tribromide in dichloromethane (6.1 mL, 6.1 mmol) according to the procedure and in the same manner as described in Example 1, step b. The crude product was purified by column chromatography on silica gel, eluting with dichloromethane, to yield 4-{[(S)-6-methylphenanthridin-5(6H)-yl]sulfonyl}phenol* (0.25 g, 0.72 mmol, 71%) as a white, solid, single enantiomer, m.p. 176-178° C.;

Workup

  1. customThe crude product was purified by column chromatography on silica gel
  2. washeluting with dichloromethane

Sources & evidence

ORD record
ord-2713142395264046830e65c97cfd145c
Source dataset
uspto-grants-2005_05
Patent number
US06894061B2

Reaction notes

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