Wyniki wyszukiwania - BazTech

Ograniczanie wyników

3 Polish Journal of Chemistry

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Reduction of Epoxy Isophorone Oxime by Metal Hydrides

Dresler R., Uzarewicz A.

Polish Journal of Chemistry

2000

Vol. 74, nr 11

1581-1587

Epoxy isophorone oxime (1) is reduced with LiAlH4/CeCl3/THF or NaBH4/MoO3/MeOH to a mixture of t-3-amino-1,5,5-trimethyl-r-1-cyclohexanol (2) and c-3-amino-1,5,5-trimethyl-r-1-cyclohexanol (3), 39:61 and 67:33, respectively. The reduction of 1 with NaBH4 or LiAlH4 affords a mixture of isomeric 3,5,5-trimethyl- 3-hydroxycyclohexan-1-one oximes 4 and 5 (syn:anti 60:40 and 44:56, respectively). The reduction of 1 with NaBH4/CeCl37H2O/ROH or CeCl37H2O/ROH (R = Me, Et, n-Pr) results in the nucleophilic opening of the epoxide ring to give 2-alkoxy-3-hydroxy derivatives 6a–c, 7a–c, and symmetric ethers 8 and 9. When 1 reacts with CeCl37H2O/t-BuOH only 8 and 9 are formed.

Reaction of cyclic allylic acetates with aliohatic alcohols in the presence of cerium(III) chloride

Uzarewicz A., Dresler R.

Polish Journal of Chemistry

1998

Vol. 72, nr 8

1921-1930

The reaction of selected allylic acetates with methanol, ethanol, n-propyl alcohol, isopropyl alcohol and tert-butyl alcohol in the presence of catalytic amounts of cerium(III) chloride are described. Allylic alkyl ethers, bis-allylic ethers and 1,3-dienes were obtained depending on the structure of the acetates.

Reaction of allylic alcohols with aliphatic alcohols in the presence of cerium(III) chloride. Part II

Uzarewicz A., Dresler R., Ścianowski J.

Polish Journal of Chemistry

1998

Vol. 72, nr 4

710-718

The reaction of selected allylic alcohols with methanol, ethanol, n-propanol, isopropanol and tert-butanol in the presence of catalytic amounts of cerium(III) chloride are described. Allylic alkyl ethers, bis-allylic ethers and 1,3-dienes were obtained depending on the structure of the reacting alcohols .