Nomenclature rules, organic compounds

Publications on the synthesis of these compounds have almost always referred to these compounds as phthalazino-quinazolines. The title name, however, conforms better with the IUPAC rule B-3.1 on the nomenclature of organic compounds (73MI3). 

A word about nomenclature. Once upon a time, chemists made a useful distinction between acetals (derived from aldehydes) and ketals (derived from ketones) which has since perished. The International Union of Pure and Applied Chemistry (IUPAC) decided (Rule C-331.1) that the term ketal is redundant and that the term acetal should now apply to all 1,1-to-ethers whether derived from aldehydes or ketones. Nevertheless, in A Guide to IUPAC Nomenclature of Organic Compounds, Recommendations 1993 (R. Panico, W.H. Powel, I-C Richter, Eds. Blackwell Science Oxford, 1993) the IUPAC graciously reinstated the term ketal , by popular demand, as a subclass of the generic term acetals (Rule R-5.6,4),... 

The rules for the nomenclature of organic compounds do not provide for hyphens. 

An abbreviation for an organic ligand should be derived from a name consistent with the current rules for the systematic nomenclature of organic compounds.4 (For some ligands a non-systematic name is included in Table VII if it was the source of the abbreviation and if that abbreviation is still commonly used.) New abbreviations should further be constructed according to the following recommendations ... 

The lUPAC is the International Union of Pure and Applied Chemistry, an organization that formulates naming rules. Organic compounds contain carbon, and they have a separate system of nomenclature, but some of the simplest molecules containing carbon also fall within the scope of inorganic chemistry. 

The nomenclature used in this chapter follows lUPAC rules as laid down in the lUPAC Nomenclature of Organic Compounds, 1979 edition. Thus the parent compounds and the dihydro-1,3-oxazines have the names indicated in Figure 1, where the locant for H (the indicated hydrogen) is always given the lowest number. 

We use the Nomenclature of Organic Chemistry of the International Union of Pure and Applied Chemistry, 1979 Edition ( Blue book , lUPAC 1979), Revised Nomenclature for Radicals, Ions, Radical Ions, and Related Species (lUPAC, 1993), the Guide to lUPAC Nomenclature of Organic Compounds (lUPAC, 1994 a), and additional rules applied by the Chemical Abstracts Service for the 1987-1991, Index Guide (Chemical Abstracts, 1992). 

A nomenclature for organic compounds has developed over the years as a way of understanding and classifying their structures. This nomenclature is now formulated in rules agreed upon by the International Union of Pure and Applied Chemistry (lUPAC). 

Systematic names for terpenoids, based on the general rules of nomenclature of organic compounds (324), are usually cumbersome and are seldom used unless the structures are sufficiently simple (212). 

The derivation of the systematic name of a heterocyclic compound is based on its structure. Nomenclature rules have been drawn up by the lUPAC Commission and these should be applied when writing theses, dissertations, pubhcations, and patents. These rules are Hsted in Section R-2 of the lUPAC Blue Book together with worked examples (H. R. Panico, W. H. Powell, J.-C. Richer, A Guide to lUPAC Nomenclature of Organic Compounds, Recommendations 1993 Blackwell Scientific Oxford, 1993 the previous lUPAC Blue Boole J. Rigandy, S. P. Klesney Nomenclature of Organic Chemistry Pergamon Oxford, 1979). 

Nomenclature of organic compounds follows lUPAC rules, and names consist of a prefix indicating the number of carbon atoms, and a suffix to indicate the type of compound. 

Isopropyl group (Section 2 13) The group (CH3)2CH— Isotactic polymer (Section 7 15) A stereoregular polymer in which the substituent at each successive chirality center is on the same side of the zigzag carbon chain Isotopic cluster (Section 13 22) In mass spectrometry a group of peaks that differ in m/z because they incorporate differ ent isotopes of their component elements lUPAC nomenclature (Section 2 11) The most widely used method of naming organic compounds It uses a set of rules proposed and periodically revised by the International Union of Pure and Applied Chemistry... 

Nomenclature of complex ions and organic compounds. We believe that this material is of little value in a beginning course. The students promptly forget how to name a complex ion, because they have litde chance to use the rules. The naming of organic compounds seems better left to a course in organic chemistry. 

The second edition of the well-known Red Book, the definitive recommendations of the lUPAC Commission on Nomenclature of Inorganic Chemistry, appeared in Pure Appl. Chem., 28, 1-110 (1971). It is also available separately as a hard-bound reprint. In this edition, the rules for naming organometallic compounds have been completely revised and extended, with introduction of the rj nomenclature for organic ligands. 

Nomenclature is the term referring to the naming of compounds. In this section, we will investigate how to name inorganic compounds. We will see how to name organic compounds in Chapter 21. In order to name compounds correctly, you will need to memorize certain elements and ions, and you will need to apply a few rules. 

The nomenclature of the alcohols is an extension of the rules for the naming of other organic compounds. The general changes in the rules for alkanes are... 

In general, organic compounds are given systematic names by using the order prefix-parent-suffix, where prefix indicates how many branching groups are present, parent indicates how many carbons are in the longest chain and suffix indicates the name of the family. Common names as weU as systematic names are used for alkanes and their derivatives. However, it is advisable to use systematic names or the lUPAC (International Union of Pure and Applied Chemistry) nomenclature, which can be derived from a simple set of rules. 

Systematic nomenclature on a worldwide scale began in 1892 when a committee of the International Chemical Congress established a set of standards known as the Geneva Rules for naming organic compounds. The International Union of Pure and Applied Chemistry (ILTPAC) http /Ywww,iupac.org/dhtml home.html was formed in 1919 and further developed this nomenclature system. In 1886 in the United States, the American Chemical Society (ACS) established a Committee on... 

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