Basic chemistry

IUPAC NOMENCLATURE part 1 IUPAC NOMENCLATURE  part 2 IUPAC NOMENCLATURE   IUPAC NOMENCLATURE OF ALICYCLIC COMPOUNDS : ( 1 ) The names of alicylic compounds are obtained by adding the prefix "cyclo". (2) The numbering of the carbon atoms in the ring is done in such a way that the substituent which comes first in the alphabetical order is given the lowest possible number provided it does not violate the lowest set of locants rule.  Example : (3)When the ring contains more or equal number of carbon atoms than the alkyl group attached to it, then it is named as a derivative of cycloalkane and the alkyl group is treated as substituent. Example : (4)The alkane chain contains greater number of carbon atoms than present in the ring, the compound is considered as the derivative of alkane and the ring is designated as substituent.  Example : (5)If ring has unsaturation and side chain is saturated then ring is selected as parent chain.  If side chain has unsaturation and ring is saturat

NOMENCLATURE PART 1  IUPAC system of Nomenclature  The basic criterion for naming a structure by IUPAC system is choice of a parent name of the basic carbon skeleton. Nomenclature of alkanes is fundamental to naming whole class of organic compounds because it helps us identify the basic carbon skeleton. General rules for IUPAC nomenclature : The IUPAC system is the most rational and widely used system of nomenclature in organic chemistry. The most important feature of this system is that any given molecular structure has only one IUPAC name and any given IUPAC name denotes only one molecular structure. The IUPAC name of any organic compound essentially consists of five parts, i.e. Word root  Primary Suffix  Secondary Suffix  Primary Prefix  Secondary Prefix Thus, a complete IUPAC name of an organic compound consists of the following parts : Secondary prefix +Primary prefix + Word root + Primary suffix + Secondary suffix Word root : It is the basic unit of the name. It denotes the numb