title: Two polycyclic compounds derived from a Diels-Alder reaction.
abstract: In both 9,10-dimethoxy-11-oxatricyclo[6.2.1.0(2,7)]undeca-4,9-diene-3,6-diol, C(12)H(16)O(5), (I), and 5,6-dimethoxy-3,7-dioxatetracyclo[6.4.0.0(2,6).0(4,12)]dodec-9-en-11-ol, C(12)H(16)O(5), (II), the hetero-oxygen-containing five-membered rings have an envelope conformation. The six-membered rings are in a boat conformation in compound (I), and in (II), one is in a half-boat and the other is in a slightly distorted boat conformation. The molecules in both compounds interact through classical hydrogen bonds and C-H.O contacts.
authors.affiliation: Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil. julio@power.ufscar.br
authors.forename: J
authors.initials: J
authors.lastname: Zukerman-Schpector
authors.forename: I
authors.initials: I
authors.lastname: Caracelli
authors.forename: M
authors.initials: M
authors.lastname: Vega
authors.forename: M G
authors.initials: MG
authors.lastname: Constantino
authors.forename: A
authors.initials: A
authors.lastname: Beatriz
authors.forename: G V
authors.initials: GV
authors.lastname: da Silva
mesh_terms: D018360:Crystallography, X-Ray; D006575:Heterocyclic Compounds, 3-Ring / Q000737:chemistry*; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry*; D008968:Molecular Conformation; D011083:Polycyclic Compounds / Q000737:chemistry*; D011789:Quantum Theory
chemical_list: C431299:5,6-dimethoxy-3,7-dioxatetracyclo(6.4.0.0(2,6).0(4,12))dodec-9-en-11-ol; C431298:9,10-dimethoxy-11-oxatricyclo(6.2.1.0(2,7))undexa-4,9-diene-3,6-diol; D006575:Heterocyclic Compounds, 3-Ring; D006576:Heterocyclic Compounds, 4 or More Rings; D011083:Polycyclic Compounds