Formic Acid → HCID 22874822, compound
Reaction equation
[CH2:1]([NH2:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:9]([C:16]([CH2:18][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)=O)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.[CH:26]([OH:28])=O.[CH:29]1([N+:35]#[C-])[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]1.[CH3:37][OH:38]>>[CH:29]1([NH:35][C:26](=[O:28])[C@:16]([CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)([CH2:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[N:8]([CH:37]=[O:38])[CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]1Participants
6
Procedure
Bzl-NH2 288 μl (2.64 mmol) and benzyl phenethylketone 592 mg (2.64 mmol) were dissolved in MeOH (5 ml) at rt and the solution was stirred overnight. To the mixture were added formic acid 99.6 μl (2.64 mmol) and cyclohexylisocyanide 298 μl (2.4 mmol) at rt, which was allowed to react at rt for 2 weeks. Insoluble material in MeOH was collected by filtration and washed with MeOH, ether and then n-hexane. The crude product was recrystallized from CHCl3 with the 2 to 1 mixture of ether and n-hexane. Yield 540 mg (48.2%), NMR in CDCl3 ; δ=0.8-1.8 cyclohexyl (11H), δ=2.1-4.75 CH2 (8H), δ=5.45-5.55 NH (1H), δ=7.0-7.4 phenyl (15H), δ=8.25 (main) and 8.4 (minor) formyl (1H).
Workup
- customto react at rt for 2 weeks
- filtrationInsoluble material in MeOH was collected by filtration
- washwashed with MeOH, ether
- customThe crude product was recrystallized from CHCl3 with the 2 to 1 mixture of ether and n-hexane
Sources & evidence
- ORD record
- ord-2285a32a18e14bcdb1532c8a9f2f5e01
- Source dataset
- uspto-grants-1999_01
- Patent number
- US05858979
Reaction notes
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