AB Sir Nomenclature part 15

Added: 2026-05-13

[00:00:00]next we will do that is by writing I am listening we will see that when you are writing the musical substituent that is mono di tri tetra penta just nicer you this words are not included by writing a listening because it is not included means it is not considered and alphabetical order while writing the appeasement means suppose we are high mono and we are having that is it hi let us sit like they're having whoa no clue and we have an Edith I all right so we don't take mono there we take what simply kuru and if I because not only that miracle suffix lyrical profits because of that but this what you can say die try it at Robin it is there in a complex substituent it is being considered I'm saying is that listen care for you now Nexus one more thing is here instead of saying die we can also use this instead of saying try we can also use tryst P is P is what I said instead of die we can say this instead of try we can say this instead of tetra but you can say that is the track is instead of Penta where we can say pentakus we can also use this like die - now we can say that is this in this way we can say that now basically mantis is used where he uses typewriter traffic time where we use this in certain cases we you have to use this we cannot use done started in certain cases like suppose a prefix utility into later on when you do nomenclature let us say if you live daddy am i the name of the bird is Dylan died a mine because of that what I said if they died a mine we are getting the prefixes now I is they are already in the audience a the profits ethylenediamine the word is die suppose this ethylenediamine of the space it comes place in that particular compound little diamond comes toys the party right you say sir I will red dye field i am i know it is wrong why because of this what you can say the meaning changes think of little bit die it will be dire mind that means two times you created two things I might know die ethylenediamine the word changes the meaning changes saying that is what you are supposed to do don't use the word die if it comes twice little in diamond if it comes to eyes don't use the word die before the what you can say prefects the money should use you should use the word this this the beading bracket you write it till it dies it is understood that it will die my occurs twice what is my point because there is ample so you can't use die you can't use die in that put likies alright understood my point when you use this particular one otherwise you are having options but in certain cases you can't like it it will it die mine already died but is there in the name of the profits and all the profits so you can't use suppose Italy diamond comes toys you can't use it die because the name meaning changes in that wickedness so hence what you are supposed to do supposed to write this very practical in diagram so generally I we use with the mistress mistress traitorous pentakus suppose if one in one carbon atom in one carbon atom if two substituent group let us say a the two substituent group are there big substituent group is the outputs voice then we use the word this alright then i use the word this elected one carbon atom that is an example suppose you want to understand completely now this is one curie this is benzene ring and this is one chlorine you can see the same group it is let me give you bit shorter see this is a benzene ring and his flaw here correct so in the but you can say that this particular group this is known as parrot or benzene we will eat later on when I teach aromatics this is character or benzene you can see it is coming twice so I try to use a time I should not use their time I should use here this all right I should use the word this because in the same carbon atom twice it is being there suppose if this is repeated twice thrice system let us say thrice it is repeated the same go back to our benzene then I should use the word Tris in this way so in certain cases you are supposed to use it and in certain cases it becomes optional alright so this is this trace Tetrarch is spent I spent time it's five times in this I hope you got it is very long now next after that again I repeat that is my writing IEP singing if number of prefixes are there I have given an example you then you have to number the prefixes that is you have to put the tokens you have to do the numbering the numbering should be done according to the lowest number rule the numbering should we have listen very carefully the numbering should be done according the list number one if number prefixes are there different different prefixes like close there bromines there it is there it is there nitro is there or it's in that case you are going to number it according to the lowest number rule but while writing the EPC name the name should be written according to alphabetical order the naming should be done according to alphabetical order this is fine number one point number two we should put the number before the prefix that means that we should put the tokens before the prefixes suppose chloro constants against the 2-chloro - that - that clue and I already assured you between number and alphabet there should be an eye single bomb and between suppose if the prefixes occurs twice got it so between number and number there should be a comma there should be a comma between number and number all right that should be a comma should be there and suppose if the same prefixes occurs twice then what should you write I totally just know that what it you should write die or et proper price then you should write try in this way clear and while writing the main the IUPAC name the complex substitutes the complex form eclipse should be written in a bracket i told just now i gave you an example in a bracket you should write the complex substitute and then the primary suffix ends in a vowel and the secondary suffix starts with a vowel like in our own is coming but it in is the primary suffix and all these use what you can say secondary suffix any a any any 0 handle summits and oman either secondary succeeds it ends in a vowel it starts at around so this is the instructor this is being removed the e of the primary suffixes may remove for writing the IUPAC name so these are the certain things you have to remember again these are things will make you perfect many practice many practice more and more you practice the but again see examples and the numerical some right dr writing that UPC means they don't you will be perfect but it then only will be perfect all right now I'll give you an example see ya series 3 let's see it he had nothing your ch-ch-ch to your CH 3 CH ch2 and ch3 so the first what I need to do is that first I should see the longest chain now I think it's clear now if you don't understand this one c2h5 and still make it simplified further even simplify gummies it's up to you you can simplify things better or this to simplify now first we find the longest chain 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 we get 9 carbon atoms any other location can you sit here I don't find it any other all right okay let's see Mambo 1 2 3 4 5 6 7 7 it comes one two three four five six seven it comes so hence this is your longest chain this is your August 9 targets now the next thing is that we have to find out from which side I should do the number from each side so that the locus the prefixes gets the lowest position now let me do the number let me write the numbers my sugar think of so much 1 2 3 4 5 6 7 8 and 9 so here it starts third one with high third position fill ocean is too high again sixth position 1 7 position to aggregate that is to I have its own position and here it is 8 if I start from this - let's see three five one six position 1 and position two and in pushing for right now if I start from this direction if I start let me write the number one two three four five six seven then this will be eight and this will be a knife okay so in second position I get it one second see a second position third position I get it two two three three third which is negative then fourth question I get it another one for field position I get another one and seventh position I get in another one that is City once again 2 then 3 3 then fourth one then fifth one then seventh one I don't have any other no since in this action now it's very simple to write you can compare according to the first part of difference rule the first one is to with the second one is fine yeah from this side the first one is 3 from this side the first looking is 2 and from this side the first domain is things so which one I should take definitely this is not this alright so this is not being considered so which one is considered this is being considered from this side it's cleared up now you can see how there's no need to add it up or so this is how did I say that first find out if I see 2 and 3 I need to see others others what it will be if the first one is saying then we'll go for the same if second is same then we go for the third in there but if the first agree we are getting the rest only to see the others but it done so so number you will do in which the blue and I take the blue and not the black one listen carefully the blue I am going to take not the black one forget about the black now first what will I do second three prefects now secondary prefix 1 again see the blue one is the second position nitro third question Kuro then 30 euro and third methide then 45 50 titles so and for medical order which comes first out of all these things we get blue room first so first we'll write 3 2 first a special order is 2 but it now after clover what is that an alphabetical order is it high so PI if I see a between number and alpha reporting - see if so Phi is high next after that what we get it is nothing but Miha it see he tidies over this is over this is over then seventh position Makai six petition Nitai and sorry so sorry third position battalion 4th position the Thai Premier of this number as I don't want why should I give it I am a little confused yes so the number not only about so third position Mathai fourth position the Thai and seventh position with high you can select three three four and seven so what will I write here that is this one I don't require this so what is that three four three four seven trying I see so simple three four seven trying it high widest try it because three times with a new stomach so destroy any time which position three four seven I have written three four seven private time so when writing time I am NOT in I am NOT considering try in the alphabetical order but which I consider an Ekans consider death I will not try alright is it clear but the if this frying time comes in a complex chain then I have to consider the tea in a forgiver correct don't forget this now next after that we got it second position that is my Rho C second question I say things over 300 Row 5 5 then 3 4 7 trying to tie and to nitro alphabetical order is being done okay now next after that primary prefix we don't have what will come group work what is rude what is a good one yeah nan lian carburetors residency now what is the primary subjects this in three primary suffixes in all our single pot no double water bodies will finish no second recipes so what is how you listening we can write it once again here three chloro five is high three four seven trying to file - right through Nani you have to write out because answer this is this is not answer each of you are combined you can see this is answer no answer you have to write it down after writing this one huh this is a process I'm teaching you you won't find out this process in any other book I am teaching you this particular thing because it will be easier for you to write the name so that you won't make a mistake you won't make any mistake all right that is what I said you so hiss when I said three chloro 5 e 5 3 4 7 prime time to write draw nany you have to write down the answer if you won't try to answer zero all right because that is my answer that you check that particular one ok in this way I will write the IEP signal when number of prefixes are given different prefixes are given and are used almost all the rules for it except circuitry suffix that I am going to come to now thank you