Reacción #1178413

ord-1bfd58b8690a44f7a0ff251a4d1eafe0

Ecuación de reacción

COC(C)(C)OC
2,2-dimethoxypropane
Cc1ccc(S(=O)(=O)O)cc1.O
p-toluenesulfonic acid monohydrate
CC1(C)OCC(CO)CO1
(2,2-dimethyl-[1,3]dioxan-5-yl)-methanol

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    workup.ADDITIONwere added
  2. 2
    OtroAs much solvent as possible was removed in vacuo
  3. 3
    workup.DISTILLATIONthe remainder was purified by distillation under vacuum

Procedimiento

Triol 3-1 (1 eq.) was dissolved in DMF at a concentration of approximately 0.5 M and 2,2-dimethoxypropane (1.16 eq.) and p-toluenesulfonic acid monohydrate (0.03 eq.) were added. The solution was stirred for one or more days, and was quenched with TEA (0.5 eq.). As much solvent as possible was removed in vacuo and the remainder was purified by distillation under vacuum.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08129358B2uspto-grants-2012_03