2-Methyl-2-butene → 1-Ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carboxylic acid

HRID 1504123Notes

Reaction equation

HRID 1504123 reaction equation
[CH2:1]([N:3]1[C:9](=[O:10])[C:8]([CH3:12])([CH3:11])[C:7](=[O:13])[N:6]([CH3:14])[C:5]2[CH:15]=[C:16]([CH:19]=[O:20])[CH:17]=[CH:18][C:4]1=2)[CH3:2].CC(=CC)C.P([O-])(O)(O)=[O:27].[Na+].Cl([O-])=O.[Na+]>O.C(O)(C)(C)C>[CH2:1]([N:3]1[C:9](=[O:10])[C:8]([CH3:12])([CH3:11])[C:7](=[O:13])[N:6]([CH3:14])[C:5]2[CH:15]=[C:16]([C:19]([OH:27])=[O:20])[CH:17]=[CH:18][C:4]1=2)[CH3:2]

Participants

7

Reactant 4

HCID 105532-Methyl-2-buteneHCID 23668197Sodium ChloriteHCID 23672064Monosodium phosphateHCID 866704761-ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carbaldehyde

Product 1

HCID 669604471-Ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carboxylic acidYield 44%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 6386tert-ButanolSolvent

Procedure

To a t-butanol (20 ml) and H2O (5 ml) solution of 1-ethyl-3,3,5-trimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepine-7-carbaldehyde (2.25 g) and 2-methyl-2-butene(3.25 ml) were added sodium dihydrogenphosphate (0.92 g) and sodium chlorite (2.081 g), and the mixture was stirred at room temperature overnight. Water was added to the reaction mixture, followed by extraction using ethyl acetate. The organic layer was dried with sodium sulfate, and was condensed under reduced pressure to give the title compound (0.98 g) as a white powder.

Workup

  1. extractionfollowed by extraction
  2. dry with materialThe organic layer was dried with sodium sulfate
  3. customcondensed under reduced pressure

Sources & evidence

ORD record
ord-31d7eadebcc448749cfa89e3608edf4c
Source dataset
uspto-grants-2015_12
Patent number
US09212187B2

Reaction notes

Loading…