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HRID 2081996Notes

Reaction equation

HRID 2081996 reaction equation
[CH3:1][C@@:2]12[C:18](=[O:19])[CH2:17][CH2:16][C@H:15]1[C@H:14]1[C@@H:5]([C:6]3[CH:7]=[CH:8][C:9]([OH:20])=[CH:10][C:11]=3[CH2:12][CH2:13]1)[CH2:4][CH2:3]2.C([O-])(=O)[C:22]1[CH:27]=[CH:26][CH:25]=[N:24][CH:23]=1.[CH3:30][I:31].C[C:33](C)=[O:34]>>[I-:31].[CH3:30][N:24]1[CH:23]=[CH:22][CH:27]=[CH2+:26][CH:25]1[C:33]([O:20][C:9]1[CH:8]=[CH:7][C:6]2[C@@H:5]3[C@H:14]([C@H:15]4[C@@:2]([CH2:3][CH2:4]3)([CH3:1])[C:18](=[O:19])[CH2:17][CH2:16]4)[CH2:13][CH2:12][C:11]=2[CH:10]=1)=[O:34]

Participants

3

Reactant 3

HCID 180AcetoneHCID 6328Methyl iodideHCID 86740294HCID 86740294, compound

Product 0

No Product data yet.

Procedure

To estrone nicotinate (0.5 g, 0.0013 mol) in acetone (20 ml) was added methyl iodide (1 ml, 0.016 mol) and the mixture was refluxed overnight. The deep yellow precipitate was filtered, washed with acetone, and dried. Yield 90% (0.6226 g); m.p. 245°-248° C. (dec.). NMR (d5 -DMSO) δ 9.8-9.7 (br s, 1H, C2 pyridinium proton), 9.4-9.0 (m, 2H, C4, C6 pyridinium protons), 8.4-8.0 (m, 1 H, C5 pyridinium proton), 7.4-7.2 (m, 1H, C1 estrone proton), 7.1-6.9 (m, 2H, C2,4 estrone protons), 3.2-1.3 (estrone skeletal protons, 15), 1.0-0.9 (s, 3H, C18 estrone protons). IR (KBr) 1755-1740 (broad C=O stretching). Anal. calculated for C25H28NO3I: C, 58.03; H, 5.47; N, 2.71. Found: C, 58.16; H, 5.51; N, 2.67. The product has the formula: ##STR1562##

Workup

  1. temperaturethe mixture was refluxed overnight
  2. filtrationThe deep yellow precipitate was filtered
  3. washwashed with acetone
  4. customdried

Sources & evidence

ORD record
ord-6caa7c93b0d846f3b8c37b27c55c1eae
Source dataset
uspto-grants-1993_02
Patent number
US05187158

Reaction notes

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