Structural studies on the dichlorocarbene adducts with (−)-R-carvone. I. The crystal structures of [1R, 4R, 6R, 9R]-7,7-dichloro-1-methyl-4-[2′,2′-dichloro-1′-methyl- cyclopropyl]-bicyclo[4.1.0]-heptan-2-one and [1R, 4R, 6R, 9S]-7,7-dichloro-1-methyl-4-[2′,2′-dichloro-1′-methylcyclopropyl]-bicyclo[4.1.0]-heptan-2-one
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چکیده
منابع مشابه
(1R,6R)-1-Methyl-8-azaspiro[5.6]dodecan-7-one
The crystal structure of the title compound, C(12)H(21)NO, has been investigated to establish the absolute stereochemistry at position 1. The absolute stereochemistry at the quaternary centre at position 6 is established to be R using an asymmetric Birch reductive alkyl-ation reaction for which the stereochemical outcome is known. The crystal structure indicates the presence of two conformers o...
متن کامل(5R)-5-[(1R)-2,2-Dichloro-1-methylcyclopropyl]-2-methylcyclohex-2-en-1-one
The title compound, C(11)H(14)Cl(2)O, was synthesized by the reaction of a dichloro-methane solution of (R)-carvone and potassium tert-butano-late in the presence of a catalytic amount of benzyl-triethyl-ammonium chloride in chloro-form. The cyclo-hexene ring adopts a half-boat conformation. The cyclo-propyl ring is unsymmetrical, the shortest C-C bond being distal to the alkyl-substituted C at...
متن کامل3,3-Dichloro-1-(chloromethyl)indolin-2-one
In the title compound, C(9)H(6)Cl(3)NO, the pyrrole ring is almost coplanar with the benzene ring [dihedral angle = 1.90 (9)°], while the Cl-C-N-C torsion angle is 98.78 (17)°. In the crystal, pairs of mol-ecules are inter-connected by pairs of Cl⋯Cl inter-actions [3.564 (5) Å], forming dimers, which are further peripherally connected through inter-molecular C-H⋯O=C and π-π inter-actions [centr...
متن کاملCrystal structure of methyl (4R)-4-(4-methoxybenzoyl)-4-{[(1R)-1-phenylethyl]carbamoyl}butanoate
The title compound, C22H25NO5, was prepared by CAN [cerium(IV) ammonium nitrate] oxidation of the corresponding β-lactam. The dihedral angle between the benzene rings is 13.3 (4)° and the C-N-C(=O)-C torsion angle is 176.1 (6)°. In the crystal, amide-C(4) N-H⋯O and reinforcing C-H⋯O hydrogen bonds link the mol-ecules into infinite [010] chains. Further C-H⋯O hydrogen bonds cross-link the chains...
متن کامل(4R)-4-[(1R)-1,2-Dihydroxyethyl]-1-[(1R)-1-phenylethyl]pyrrolidin-2-one
The title compound, C(14)H(19)NO(3), was obtained as one of the two isomers of a Sharpless asymmetric dihydroxy-lation reaction of (1S)-1-[(1R)-1-phenyl-ethyl]-4-vinyl-pyrrolidin-2-one. The absolute stereochemistry of this isomer was determined from the known stereochemistry (R) at the bridge C atom between the phenyl and pyrrolidine rings. The mol-ecules form one-dimensional tapes along the b ...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1984
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v84-095