Hydrochloric Acid → HCID 178432276, compound

HRID 74480

Reaction equation

[F:1][C:2]1[C:7]2[N:8]=[C:9]([CH3:11])[NH:10][C:6]=2[CH:5]=[C:4]([NH2:12])[CH:3]=1.C[Si]([N-][Si](C)(C)C)(C)C.[Li+].[C:23](=[N:36]N)([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.Cl>CN1CCOCC1>[C:23](=[N:36][NH:12][C:4]1[CH:3]=[C:2]([F:1])[C:7]2[NH:8][C:9]([CH3:11])=[N:10][C:6]=2[CH:5]=1)([C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1

Participants

Conditions

Temperature: 100 °C

Procedure

In a separate reaction container, 7-fluoro-2-methyl-3H-benzimidazol-5-yl amine (100 mg, 0.44 mmol), lithium bis(trimethylsilyl) amide (190 mg, 1.1 mmol), and benzophenone hydrazone (94.3 mg, 0.48 mmol) were dissolved in N-methyl-morpholine (0.5 ml) under a nitrogen atmosphere. Then, the prepared solution containing the catalyst was added thereto. After deaeration, this was heated and stirred at 100° C. under a nitrogen atmosphere for two hours. The reaction mixture was cooled to room temperature, and then an aqueous solution of 6 M hydrochloric acid (0.5 ml) was added thereto. The organic layer was isolated, and concentrated under reduced pressure. Thus, crude N-benzhydrylidene-N′-(7-fluoro-2-methyl-1H-benzimidazol-5-yl)-hydrazine was obtained. The obtained crude product was used in subsequent reactions without being purified.

Workup

additionThen, the prepared solution containing the catalyst
additionwas added
temperatureAfter deaeration, this was heated
temperatureThe reaction mixture was cooled to room temperature
customThe organic layer was isolated
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-0522042ac78d4dc9b73fc28706cba004
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08829199B2

Linked notes

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