Acetic Acid → HCID 11739626, compound

HRID 749800Notes

Reaction equation

HRID 749800 reaction equation
[CH2:1]([N:8]1[C:17]2[CH2:16][CH2:15][NH:14][CH2:13][CH2:12][C:11]=2[C:10]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:25](O)(=O)C.C=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>ClCCCl.C(Cl)Cl>[CH2:1]([N:8]1[C:17]2[CH2:16][CH2:15][N:14]([CH3:25])[CH2:13][CH2:12][C:11]=2[C:10]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 11151899JNJ-18038683 free base

Product 1

HCID 11739626HCID 11739626, compoundYield 42.6%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 1-benzyl-3-(4-chloro-phenyl)-1,4,5,6,7,8-hexahydro-1,2,6-triaza-azulene (Example 59, Step E; 0.1 mmol) in 1,2-dichloroethane (5 mL) was added acetic acid (0.2 mmol), formaldehyde (37% water solution, 0.037 mL), and NaBH(OAc)3 (0.2 mmol). The mixture was stirred at RT for 15 h. The mixture was diluted with CH2Cl2 and washed with satd. aq. NaHCO3 (2×). The combined organic layers were dried over Na2SO4, filtered, and concentrated in vacuo. Chromatography on SiO2 (2 M NH3 in MeOH/CH2Cl2) afforded 0.015 g of the title compound. MS (ESI): exact mass calculated for C21H22ClN3, 351.15; found, m/z 352.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 7.45-7.42 (m, 2H), 7.32-7.29 (m, 2H), 7.26-7.19 (m, 3H), 7.03-7.01 (br m, 2H), 5.27 (s, 2H), 2.75-2.68 (m, 4H), 2.64-2.58 (m, 4H), 2.36 (s, 3H).

Workup

  1. washwashed with satd
  2. dry with materialThe combined organic layers were dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-299c62b00f334dd997ef49397aa638c7
Source dataset
uspto-grants-2008_07
Patent number
US07402680B2

Reaction notes

Loading…