Add to ORKGIsopropylidene and cyclohexylidene ketals of γ- and δ-heptonolactones derived from Kiliani ascensions of protected L-rhamnose may constitute suitable intermediates for the preparation of mimics of L-rhamnose. The X-ray crystal structure of 7-deoxy-3,4-O-isopropylidene-L-glycero-L-galacto-heptono-1,5-lactone provides an example of a δ-lactone in a boat conformation with a substituent in a flagpole position. The size of ring in the lactones is completely consistent with Hudson's classical lactone rotation rule of 1910. © 1994
The title compound, C17H28O7, was prepared from protected D-glycero-D-gulo-heptono-1,4-lactone by ta...
The relative configuration at position C-2 of the title lactone, C11H18O6, which exists in the five-...
The relative configuration at position C-2 of the title lactone, C11H18O6, which exists in the five-...
X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the tit...
X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the tit...
The Kiliani reaction of D-hamamelose with sodium cyanide, followed by acetonation, affords crystalli...
The relative configuration at C-2 of 2,4-dimethyl-3,4-O-isopropyl-idene-l- arabinono lactone, C10H16...
Acetonides of the eight carbon sugar lactones, D-erythro-L-talooctono-1,4-lactone and D-erythro-L-ga...
The relative configuration and ring size of the title compound, C 7H12O6, were established by X-ray ...
X-ray crystallographic analysis firmly establishes the ribo stereochemistry and the unusual boat con...
The relative configuration at C-2 of the title lactone, C14H22O6, which exists in the five-membered ...
The ring contraction of readily available δ-lactones provides a short route to the synthesis of both...
The structures of both lactones derived from the Kiliani ascension of 2-C-methyl-D-threose were defi...
Heptonolactones, in which all the functional groups except one can be protected with a single ketal ...
The preparation of the δ-heptonolactones, 4-O-benzyl-D-glycero-D-D-gulo-heptono-1,5-lactoneand 4-O-b...
The title compound, C17H28O7, was prepared from protected D-glycero-D-gulo-heptono-1,4-lactone by ta...
The relative configuration at position C-2 of the title lactone, C11H18O6, which exists in the five-...
The relative configuration at position C-2 of the title lactone, C11H18O6, which exists in the five-...
X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the tit...
X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the tit...
The Kiliani reaction of D-hamamelose with sodium cyanide, followed by acetonation, affords crystalli...
The relative configuration at C-2 of 2,4-dimethyl-3,4-O-isopropyl-idene-l- arabinono lactone, C10H16...
Acetonides of the eight carbon sugar lactones, D-erythro-L-talooctono-1,4-lactone and D-erythro-L-ga...
The relative configuration and ring size of the title compound, C 7H12O6, were established by X-ray ...
X-ray crystallographic analysis firmly establishes the ribo stereochemistry and the unusual boat con...
The relative configuration at C-2 of the title lactone, C14H22O6, which exists in the five-membered ...
The ring contraction of readily available δ-lactones provides a short route to the synthesis of both...
The structures of both lactones derived from the Kiliani ascension of 2-C-methyl-D-threose were defi...
Heptonolactones, in which all the functional groups except one can be protected with a single ketal ...
The preparation of the δ-heptonolactones, 4-O-benzyl-D-glycero-D-D-gulo-heptono-1,5-lactoneand 4-O-b...
The title compound, C17H28O7, was prepared from protected D-glycero-D-gulo-heptono-1,4-lactone by ta...
The relative configuration at position C-2 of the title lactone, C11H18O6, which exists in the five-...
The relative configuration at position C-2 of the title lactone, C11H18O6, which exists in the five-...