Reaktion #2695

ord-71815a1699b6445f9f96283c7d73efe0

Reaktionsgleichung

COC(=O)c1c2c(c(C(O)(c3c4c(c(C(=O)OC)c5c3OC(C)(C)O5)OC(C)(C)O4)c3c4c(c(C(=O)OC)c5c3SC(C)(C)S5)SC(C)(C)S4)c3c1OC(C)(C)O3)OC(C)(C)O2
Bis-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dioxol-4-yl)-mono-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dithiol-4-yl)methanol
CCOCC.FB(F)F
BF3.Et2O
[Cl][Sn][Cl]
tin(II) chloride
→
COC(=O)c1c2c(c(C(c3c4c(c(C(=O)OC)c5c3OC(C)(C)O5)OC(C)(C)O4)c3c4c(c(C(=O)OC)c5c3SC(C)(C)S5)SC(C)(C)S4)c3c1OC(C)(C)O3)OC(C)(C)O2
Bis-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis (1,3) dioxol-4-yl)-mono-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dithiol-4-yl) methane

Edukte

COC(=O)c1c2c(c(C(O)(c3c4c(c(C(=O)OC)c5c3OC(C)(C)O5)OC(C)(C)O4)c3c4c(c(C(=O)OC)c5c3SC(C)(C)S5)SC(C)(C)S4)c3c1OC(C)(C)O3)OC(C)(C)O2
Bis-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dioxol-4-yl)-mono-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dithiol-4-yl)methanol
CCOCC.FB(F)F
BF3.Et2O
[Cl][Sn][Cl]
tin(II) chloride

Reagenzien

[Zn]
zinc

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Sonstigein dry
  2. 2
    Sonstigedegassed acetonitrile under an argon atmosphere
  3. 3
    SonstigeThe product was purified by flash chromatography (ether/heptane 5:1)

Vorschrift

Bis-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dioxol-4-yl)-mono-(8-methoxycarbonyl-2,2,6,6-tetramethylbenzo[1,2-d:4,5-d']-bis(1,3)dithiol-4-yl)methanol (5 mg, 0.005 mmol) was dissolved in dry, degassed acetonitrile under an argon atmosphere. BF3.Et2O (2.0 μL, 0.011 mmol) and tin(II) chloride (3.0 mg, 0.016 mmol) were added. Amalgamated zinc (1.0 mg, 0.015 mmol) was added. The product was purified by flash chromatography (ether/heptane 5:1). Due to the small amount used the yield was not determined.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05728370uspto-grants-1998_03