Hydrochloric Acid → HCID 178421814, Verbindung

HRID 1295070Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1295070
[CH3:1][C:2]1([CH3:13])[CH:4]2[CH2:5][C:6]3[C:10]([CH:3]12)=[N:9][NH:8][C:7]=3[C:11]#[N:12].[N-:14]=[N+:15]=[N-:16].[Na+].Cl>O1CCOCC1.[Br-].[Br-].[Zn+2]>[CH3:1][C:2]1([CH3:13])[CH:4]2[CH2:5][C:6]3[C:10]([CH:3]12)=[N:9][NH:8][C:7]=3[C:11]1[N:14]=[N:15][NH:16][N:12]=1

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 33557Sodium AzideHCID 178421815(+/-)-1,1-dimethyl-1a,3,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonitrile

Produkt 1

HCID 178421814HCID 178421814, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 10421208Zinc bromideKatalysatorHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
200 °C

Versuchsvorschrift

(±)-1,1-Dimethyl-1a,3,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carbonitrile (0.184 g, 1.06 mmol) was taken up in 1,4-dioxane (10 mL) with zinc dibromide (0.500 g, 2.22 mmol) and sodium azide (0.300 g, 4.62 mmol) in a heavy walled glass tube. The resulting solution was heated under microwave irradiation to 200° C. for 1 hour. The solution was poured into 1M aqueous hydrochloric acid (10 mL) and extracted into ethyl acetate (50 mL). Solvent was removed under reduced pressure and the resulting oil purified by preparative HPLC to give (±)-1,1-dimethyl-4-(2H-tetrazol-5-yl)-1a,3,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene as a white solid. m/z (ES+): 217 [M+H]+, 189 [M−N2+H]+; 1H NMR (CD3OD): δ 2.87 (dd, 1H, J1=16.5, J2=5.6), 2.67 (dd, 1H, J1=16.5, J2=0.8), 2.1–2.0 (m, 2H), 1.08 (s, 3H), 0.69 (s, 3H).

Aufarbeitung

  1. extractionextracted into ethyl acetate (50 mL)
  2. customSolvent was removed under reduced pressure
  3. customthe resulting oil purified by preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-81d4115e240e492f935cb6244420307b
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07241792B2

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