Acetic Anhydride → 3-(Benzothiazol-2-ylthio)propane-1,2-dicarboxylic anhydride

HRID 2309671Notes

Reaction equation

HRID 2309671 reaction equation
[S:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[S:10][CH2:11][CH:12]([C:17]([OH:19])=[O:18])[CH2:13][C:14]([OH:16])=O.C(OC(=O)C)(=O)C>>[S:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[S:10][CH2:11][CH:12]1[C:17](=[O:18])[O:19][C:14](=[O:16])[CH2:13]1

Participants

3

Reactant 2

HCID 7918Acetic AnhydrideHCID 194275373-(Benzothiazol-2-ylthio)-propane-1,2-dicarboxylic acid

Product 1

HCID 539711813-(Benzothiazol-2-ylthio)propane-1,2-dicarboxylic anhydride

Procedure

A suspension of 20 parts 3-(benzothiazol-2-ylthio)-propane-1,2-dicarboxylic acid and 200 parts acetic anhydride is heated at 55° during 1.5 hours. The resulting yellow solution is cooled, poured onto 1000 parts ice-water, stirred until solid to give 3-(benzothiazol-2-ylthio)propane-1,2-dicarboxylic anhydride m.p. 87°-88°.

Workup

  1. temperatureis heated at 55° during 1.5 hours
  2. temperatureThe resulting yellow solution is cooled

Sources & evidence

ORD record
ord-4b1fe61bc53244f782e9ad6423591899
Source dataset
uspto-grants-1987_09
Patent number
US04696763

Reaction notes

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