(4aS,5R,7R,8S,8aR)-8-(1,3-Dioxolan-2-yl)-7,8-dimethyl-5-(1-methylethenyl)perhydronaphthalen-2-one
نویسندگان
چکیده
In the chiral title compound, C(18)H(28)O(3), the two six-membered rings of the perhydronaphthalenone adopt a rigid chair-chair conformation and the five-membered dioxolanyl ring adopts an envelope conformation. The crystal structure is stabilized only by weak inter-actions.
منابع مشابه
Neoirietriol
The title compound {systematic name: (1R,4S,4aS,7R,8aR)-4-bromo-7-[(1S,3R)-3-bromo-1,2,2-trimethyl-cyclo-pent-yl]-1,4a-dimethyl-deca-hydro-naphthalene-1,7,8a-triol}, C(20)H(34)Br(2)O(3), is a neoirieane-type bromo-diterpenoid isolated from Laurencia yonaguniensis Masuda et Abe, species inedita. The absolute stereochemistry was established as (1S,4R,5R,7R,10S,11S,14R). The structure displays int...
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The Kiliani reaction on 1-de-oxy-(N,N-dimethyl-amino)-d-fructose, itself readily available from reaction of dimethyl-amine and d-glucose, proceeded to give access to the title β-sugar amino acid, C(15)H(27)NO(7). X-ray crystallography determined the stereochemistry at the newly formed chiral center. There are two mol-ecules in the asymmetric unit; they are related by a pseudo-twofold rotation a...
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In the title compound, C(11)H(15)FN(2)O(5), the five-membered ring has an envelope conformation, while the six-membered ring is essentially planar, with a maximum deviation of 0.032 (2) Å from the mean plane. The crystal packing is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, generating a layer structure parallel to (001).
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