Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Laurence Miesch-Gross"'
Publikováno v:
European Journal of Organic Chemistry. 2000:3693-3702
The divalent tin enol ether of the racemic complex between N-BOC-α-aminoheptadienone and tricarbonyliron reacts with both enantiomers of protected lactaldehydes to yield predominantly one optically active, easily isolable ketol diastereoisomer (45%)
Publikováno v:
Tetrahedron Letters. 40:2829-2832
The divalent tin enol ether of the racemic N-BOC α-aminodienone tricarbonyliron complex 4 reacts with both enantiomers of protected lactaldehydes to predominantly yield one optically active ketol diastereoisomer (45 %). From the enantiomerically pur
Publikováno v:
Tetrahedron Letters. 38:8077-8080
substituted η4-(1-oxiranyl-diene) iron tricarbonyl complexes of known configuration are easily synthesized as pure diastereomers. They undergo regiospecific Lewis acid mediated reductions to afford α-alkyl β-hydroxy dienes which represent subunits
Publikováno v:
Tetrahedron. 53:2103-2110
The cyclobutenic ester 1, readily available by thermal [2+2] cycloaddition of the silyl enol ether derived from cyclopentanone with ethyl propynoate, is easily transformed into the diquinanic alcohol 3 via the bicyclo [2.1.0] pentane intermediate 2.
Publikováno v:
Tetrahedron. 53:2111-2118
The cyclopropanation of the starting cyclopentacyclobutene 4 was achieved by a 1,3-dipolar cycloaddition using diazoethane followed by sensitized photolysis. The resulting bicyclo [2.1.0] pentan-2-ol derivative 8 was cleaved by reflux in acetic acid,
Publikováno v:
Tetrahedron Letters. 37:8763-8766
Upon treatment with AlCl 3 , the acid chlorides of tricarbonyl [isoprene-4-butanoic acid] iron and of tricarbonyl [butadiene-2-propanoic acid] iron yield five membered cyclic ketones containing a portion of the metal bound diene. The intramolecular a
Publikováno v:
ChemInform. 28
The cyclobutenic ester 1, readily available by thermal [2+2] cycloaddition of the silyl enol ether derived from cyclopentanone with ethyl propynoate, is easily transformed into the diquinanic alcohol 3 via the bicyclo [2.1.0] pentane intermediate 2.
Publikováno v:
ChemInform. 28
The cyclopropanation of the starting cyclopentacyclobutene 4 was achieved by a 1,3-dipolar cycloaddition using diazoethane followed by sensitized photolysis. The resulting bicyclo [2.1.0] pentan-2-ol derivative 8 was cleaved by reflux in acetic acid,