Hydrochloric Acid → [3-(4-Methylphenyl)sulfonyloxy-2,2-bis[(4-methylphenyl)sulfonyloxymethyl]propyl] 4-methylbenzenesulfonate

HRID 1372547

Reaction equation

HRID 1372547 reaction equation
[OH:1][CH2:2][C:3]([CH2:8][OH:9])([CH2:6][OH:7])[CH2:4][OH:5].[C:10]1([CH3:20])[CH:15]=[CH:14][C:13]([S:16](Cl)(=[O:18])=[O:17])=[CH:12][CH:11]=1.Cl>N1C=CC=CC=1>[S:16]([O:1][CH2:2][C:3]([CH2:8][O:9][S:16]([C:13]1[CH:14]=[CH:15][C:10]([CH3:20])=[CH:11][CH:12]=1)(=[O:18])=[O:17])([CH2:6][O:7][S:16]([C:13]1[CH:14]=[CH:15][C:10]([CH3:20])=[CH:11][CH:12]=1)(=[O:18])=[O:17])[CH2:4][O:5][S:16]([C:13]1[CH:14]=[CH:15][C:10]([CH3:20])=[CH:11][CH:12]=1)(=[O:18])=[O:17])([C:13]1[CH:14]=[CH:15][C:10]([CH3:20])=[CH:11][CH:12]=1)(=[O:18])=[O:17]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 73974-Toluenesulfonyl chlorideHCID 8285Pentaerythritol

Product 1

HCID 301538[3-(4-Methylphenyl)sulfonyloxy-2,2-bis[(4-methylphenyl)sulfonyloxymethyl]propyl] 4-methylbenzenesulfonateYield 91%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

A mixture of pentaerythritol (27.20 grams, 199.8 mmol; obtained from Aldrich Chemical Co., Milwaukee, Wis.) and p-toluenesulfonyl chloride (171.0 grams, 897.0 mmol; obtained from Aldrich Chemical Co., Milwaukee, Wis.) in dry pyridine (300 milliliters; obtained from Anachemia) was stirred for 48 hours under nitrogen gas. This mixture was then added to 2 liters of 6 Normal hydrochloric acid. The resulting white precipitate was filtered and washed with methanol. The solid was recrystallized from benzene to afford pure pentaerythritol tetratosylate (136.5 grams, 181.3 mmol, 91 percent yield) as white crystals: mp 155–156° C.; IR (KBr) 3047, 2958, 2926, 1907, 1599, 1468, 1367, 1296, 1174, 1180, 1096, 976, 835, 666, 607, 554 cm−1; 1H NMR (400 MHz, CDCl3) δ 7.68 (d, 8H, 3J=8.2 Hz), 7.36 (d, 8H, 3J=8.2 Hz), 3.82 (s, 8H), 2.47 (s, 12H); 13C NMR (100 MHz, CDCl3) δ 145.86, 131.50, 130.38, 128.15, 65.74, 43.41, 21.90; MS (FAB, 3-nitrobenzyl alcohol) m/e 753; Anal. Calcd for C33H36O12S4: C, 52.64; H, 4.82; S, 17.04. Found: C, 52.98; H, 4.77; S, 17.60.

Workup

  1. filtrationThe resulting white precipitate was filtered
  2. washwashed with methanol
  3. customThe solid was recrystallized from benzene

Sources & evidence

ORD record
ord-60912ab9501f449d9eb0f826d9ed64a6
Source dataset
uspto-grants-2007_01
Patent number
US07157601B2

Linked notes

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