- Stereocontrolled Preparation of Cyclohexane Amino Alcohols Utilising a Modified Mitsunobu Reaction
-
A method for the introduction of amino groups into aliphatic systems is described.Cyclohex-2-enol reacts with aromatic diacylamines under Mitsunobu reaction conditions to give either N-alkylated or O-alkylated products in a controlled, predictable manner.
- Sammes, Peter G.,Thetford, Dean
-
p. 655 - 661
(2007/10/02)
-
- SYNTHESIS OF (L)-DAUNOSAMINE AND RELATED AMINO SUGARS
-
1-(2-Furyl)ethanol (6) has been converted into methyl (+/-)-daunosaminide (1) and methyl (+/-)-ristosaminide (3) by use of an intramolecular cyclisation of a trichloroacetimidate group. (+/-)-Daunosamine (1) has been obtained more directly from the alcohol (10) by use of a modified Mitsunobu reaction; the scope of the latter reaction has been explored using cyclohex-2-en-1-ol as a model substrate.Asymmetric reduction of 2-acetylfuran (5) has given (S)-1-(2-furyl)ethanol (46) in good enantiomeric excess, thus providing a short route to the L-enantiomers of the amino sugars (1), (2), and (3) from a cheap, non-carbohydrate precursor.
- Sammes, Peter G.,Thetford, Dean
-
p. 111 - 124
(2007/10/02)
-
- NEW ROUTES TO CIS-1,2-HYDROXYAMINES AND RELATED SYSTEMS
-
Use of modified Mitsunobu reactions followed by intramolecular cyclisations have been used to prepare cis-1,2-hydroxyamines, cis-1,3-hydroxyamines, 1,2,3-dihydroxyamines and 1,2,3-diaminoalcohols from allylic alcohols
- Sammes, Peter G.,Thetford, Dean
-
p. 2275 - 2278
(2007/10/02)
-