Ammonia → HCID 14650455, compound

HRID 1200187Notes

Reaction equation

HRID 1200187 reaction equation
[C:1]1([C:7]2[O:8][C:9]3[C:17]([CH2:18][C:19]([OH:21])=O)=[CH:16][CH:15]=[CH:14][C:10]=3[C:11](=[O:13])[CH:12]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]=1.C([N:24](CC)CC)C.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)C=CC=CC=1.N>CCCCCC.ClCCl>[C:1]1([C:7]2[O:8][C:9]3[C:17]([CH2:18][C:19]([NH2:24])=[O:21])=[CH:16][CH:15]=[CH:14][C:10]=3[C:11](=[O:13])[CH:12]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]=1

Participants

7

Reactant 4

HCID 222AmmoniaHCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 14650449HCID 14650449, compound

Product 1

HCID 14650455HCID 14650455, compound

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8058HexaneSolvent

Procedure

[2-(1-cyclohexenyl)-4-oxo-4H-[1]-benzopyran-8-yl]acetic acid (100 mg) and triethylamine (53 mg) were added to dichloromethane (2ml). After addition of diphenylphosphoryl azide (145 mg) with stirring under ice cooling, the mixture was stirred at room temperature for 1 hour. Conc. aqueous ammonia (5 ml) was added to the reaction mixture and stirring was further continued for 1 hour. Hexane (5 ml) was added and crystals deposited were filtered off. The crystals were recrystallized from dichloromethane and methanol to obtain the title compound as needles, m.p. 244°-245° C., yield 64 mg (64.6%).

Workup

  1. stirringthe mixture was stirred at room temperature for 1 hour
  2. stirringstirring
  3. filtrationcrystals deposited were filtered off
  4. customThe crystals were recrystallized from dichloromethane and methanol

Sources & evidence

ORD record
ord-5173607d421f47efa01fc73c817cc319
Source dataset
uspto-grants-1990_02
Patent number
US04904690

Reaction notes

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