4-(16-Bromohexadecylamino)benzoic acid → 4-(16-Bromohexadecylamino)benzoyl chloride hydrochloride

HRID 648311Notes

Reaction equation

HRID 648311 reaction equation
[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][NH:18][C:19]1[CH:27]=[CH:26][C:22]([C:23](O)=[O:24])=[CH:21][CH:20]=1.C(COC)OC.C(Cl)[Cl:35]>>[ClH:35].[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][NH:18][C:19]1[CH:27]=[CH:26][C:22]([C:23]([Cl:35])=[O:24])=[CH:21][CH:20]=1

Participants

3

Reactant 2

HCID 204825194-(16-Bromohexadecylamino)benzoic acidHCID 86634710Dimethoxyethane methylene chloride

Product 1

HCID 130254084-(16-Bromohexadecylamino)benzoyl chloride hydrochloride

Procedure

A cold solution of 25 g. 4-(16-bromohexadecylamino)benzoic acid in 500 ml. dimethoxyethane-methylene chloride (4:1) is prepared and dry hydrochloric acid is bubbled through the solution until no more precipitate forms. The solution is treated with 25 ml. thionyl chloride and refluxed until all of the precipitate has dissolved. The solvents are evaporated to yield an orange, semi-crystalline mass.

Workup

  1. customdry hydrochloric acid is bubbled through the solution until no more precipitate forms
  2. additionThe solution is treated with 25 ml
  3. temperaturethionyl chloride and refluxed until all of the precipitate
  4. dissolutionhas dissolved
  5. customThe solvents are evaporated
  6. customto yield an orange, semi-crystalline mass

Sources & evidence

ORD record
ord-2b84053857ab46578c5ad8491dc83210
Source dataset
uspto-grants-1983_10
Patent number
US04411903

Reaction notes

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