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Hydrochloric Acid → 6-[m-(Furfurylamino)phenyl]-2,3,5,6-tetrahydroimidazo[2,1-b]thiazole

HRID 1729862
Notes
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Reaction equation

HRID 1729862 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:8]2[CH2:15][N:14]3[C:10]([S:11][CH2:12][CH2:13]3)=[N:9]2)[CH:5]=[CH:6][CH:7]=1.[CH:16](=O)[C:17]1[O:21][CH:20]=[CH:19][CH:18]=1.C([BH3-])#N.[Na+].Cl>CO.C(O)(=O)C>[CH2:16]([NH:1][C:2]1[CH:3]=[C:4]([CH:8]2[CH2:15][N:14]3[C:10]([S:11][CH2:12][CH2:13]3)=[N:9]2)[CH:5]=[CH:6][CH:7]=1)[C:17]1[O:21][CH:20]=[CH:19][CH:18]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 7362FurfuralHCID 30386693-AminolevamisoleHCID 5003444Sodium cyanoborohydride

Product 1

HCID 214456356-[m-(Furfurylamino)phenyl]-2,3,5,6-tetrahydroimidazo[2,1-b]thiazole

Reagents, catalysts & solvents 2

HCID 176
Acetic Acid
Solvent
HCID 887MethanolSolvent

Procedure

A mixture of 4.4 g. (0.020 mole) of 6-(m-aminophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b]thiazole, 2.1 g. (0.022 mole) furfural, 3.5 ml. acetic acid and 50 ml. methanol are placed in a reaction flask along with some molecular sieves. To this 0.63 g. (0.01 mole) of sodium cyanoborohydride is added slowly and the mixture stirred two hours. The mixture is now acidified to pH 1 with hydrochloric acid. A solid material is removed by trituration and the solvent evaporated leaving an oily residue.

Workup

  1. additionA mixture of 4.4 g
  2. customA solid material is removed by trituration
  3. customthe solvent evaporated
  4. customleaving an oily residue

Sources & evidence

ORD record
ord-73b25198c2dd4921843bf94bf9912192
Source dataset
uspto-grants-1976_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US03989835

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes