The numbers of chiral and achiral alkanes and monosubstituted alkanes
نویسندگان
چکیده
منابع مشابه
Numbers of Monosubstituted Alkanes as Stereoisomers
Monosubstituted alkanes as stereoisomers, not as constitutional isomers, are regarded as planted threedimensional (3D) trees, which are defined as a 3D extension of planted trees (graphs). They are thus recognized as 3D-objects (planted promolecules) and enumerated by Fujita’s proligand method (Fujita S (2005) Theor. Chem. Acc. 113:73–79, 113:80–86, Fujita S (2006) Theor. Chem. Acc. 115:37–53)....
متن کاملEnumeration of Primary, Secondary, and Tertiary Monosubstituted Alkanes as Stereoisomers
Monosubstituted alkanes are counted as stereoisomers by means of Fujita’s proligand method (Fujita S (2005) Theor. Chem. Acc. 113:73-79, 113:80-86, Fujita S (2006) Theor. Chem. Acc. 115:37-53), where the numbers of primary, secondary, and tertiary ones are calculated after deriving respective functional equations. The procedures of counting are programmed by means of the Maple programming langu...
متن کاملConstructive Enumeration of Chiral Isomers of Alkanes*
The problem of exhaustive and non-redundant generation of formulas of chiral isomers of alkanes was considered. The procedure starts with the generation of optimal codes of all N-alkane structures (N denotes the number of carbon atoms.) and then the algorithm determines whether a given structure contains at least a single carbon atom, with four different substituents. In order to accomplish the...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اول2: Alkanes and Cycloalkanes Alkanes Alkane Systematic Nomenclature Cycloalkanes Conformations of Alkanes Conformations of Cycloalkanes Conformations of Alkylcyclohexanes
Preview You learned in the Chapter 1 that all organic molecules have carbon skeletons. These carbon skeletons show great diversity in the ways that C atoms bond to each other, and in their three-dimensional shapes. Alkanes and cycloalkanes consist entirely of carbon skeletons bonded to H atoms since they have no functional groups. As a result, they serve as a basis for understanding the structu...
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ژورنال
عنوان ژورنال: Tetrahedron
سال: 1976
ISSN: 0040-4020
DOI: 10.1016/0040-4020(76)80049-x