AB Tutorial

Added: 2026-05-18

[00:00:00]verily the last part of the preparation of hell earnings in the last class we were doing the preparation of calories from diazonium salts were you the last part so the first we will do today is Gator man reaction Gator man's reaction will do so in determines reaction we are having two types of reaction basically let me tell you we are having determines reaction and sign message the difference is that in both the cases we are using the same thing we will be using an S or iam salt that is benzene diazonium chloride n2 + CL - he case of gatorman reaction you'll be using c1x CL all right and in case of sign makes reaction side mayor's reaction what will do is that will be using same thing that is a disodium salt and here you will be using see you CL and HCl see you see on an exhale that's the difference so here what I am going to get it I am going to get here that is nothing but chlorobenzene plus nitrogen remember it really the preparation of floor of it's in the last part so here are you get it same thing I am going to get it that is chlorobenzene plus nitrogen okay now here we understood now so in Katamon reaction see you Excel is being used and this chlorine actually this particular chlorine it comes to as as a what you can say the substituent or it gets attached to the nucleus of the we can set this particularly from the halogen acids rumerator and in case of Sandy's reaction that is the chlorine which is attached in the copper in the copper salt that particular halogen gets attached to the benzene ring so what I need to say here is that now this you're destroyed now what I'm going to say here is that if I replace this with Cu BR and HB R what I'm going to get it I am going to get here that is nothing but bromo benzene plus nitrogen plus CL minus this particular bromobenzene plus nitrogen so in case of Sandman's reaction the halogen which gets attached to the benzene ring it comes from the copper sword and in case of Gadd minus reaction the halogen which gets attached the benzene ring comes from the allergy assets so this is your Gator man's reaction I'd say me it's reaction by which you can prepare that is your iodine collects next we will come to that is the next reaction we are going to come to is your pulse like a reaction which you have already done in the headlights here also same thing I am going to take it another I am going to take benzene ring Co AG a silver salt that is silver benzoate I can say that silver benzoate now when I will be heating this particular one with BR 2 in presence of CCL 4 reflux what I am going to get same thing I am going to get it is bromobenzene plus AG BR plus u that is Bravo benzene plus DG be aa plus Co you are going to get it ok so in this way you are going to get it that is your hans-dieter reaction we can sir second we actually can prepared similarly we are also having another process that is your restricts process it is an industrial method for the preparation of arrival except receives an industrial method here what we're doing here taking benzene all right we are taking pens in here plus we are taking axial which is in the gaseous state revert plus we are taking oxygen of option from a we are getting it from air we are getting this oxygen this means these two are gaseous and here we are making see you see you see L 2 which acts as a catalyst and the temperature is around 500 Kelvin I will be Marik simply heated now what I am going to get it I am going to get here is nothing but pure benzene all right now if you take your half a molecule of oxygen if you are going to do half a molecule of oxygen in fact they are going to detect it then what I am going to get is that I am going to get it there is nothing but water because of hydrogen is being released from here this idea that this idea and here half a molecule of oxygen I've taken it what I am to get it smarter or you can take care to if you balance it use a nylon take half then you can take here to a benzene ring plus 2x CL plus o2 will give you 2 chlorobenzene plus whatever you will be giving it so this is your ass cheeks process in there are six process we are manufacturing that is around halides this particular way we can select next after that we will see it we've already done that now here at this time asking you what is the product you'll be giving it that is I take a tumble i Nick yeah tumble plus s so to seal everything off a solution to it is sunfury pure right sulfury flow rate if anybody has said they are absolutely correct it is sulfuryl chloride and here I'm taking four satified Kelvin H nu and little peroxides little peroxide so from this you can understand it that I am going to go for that is nothing but what is Thanks is it side chain reaction I am going to go go for it or whether I am going to go for the nuclear reaction that means I want to say you that this chlorine will be replaced but again this chlorine will replace one hydrogen or chlorine will be added in the fourth or at the para position what do you say Xu and peroxide come on what do you say H nu and peroxide so it is going to go a free-radical substitution reaction a free-radical substitution reaction is going to go so hey this here hydrogen atom will be but against the chlorine will replace ahead an act of science what I am going to get it ch2 CL plus s so two plus XA this we have done it in our cabinets this particular this I decided it a arrive minutes now one more one more now here I am taking ch2 ch3 and in presence of NBS what is NBS NBS is n-bromosuccinimide if you remember it this is the structure this is and bromo cinema if you remember this is the structure of n-bromosuccinimide already there is Saxena Cassady CH to see oh oh ex-singer gone CH 2 CH and the place have got the edge and instead of that I have put it MBR set is n-bromosuccinimide okay that is NBS we have done this particular reaction in beings with propene vanity alcoholics that is same thing it's new and little peroxide so what sort of friction sinking I think you can get such what sort of reaction that is ch VR single bond CH 3 here H is replaced by the bromine your Senate that is NBS from the NBA as the bromine comes a ditch it is being replaced all right now what I am going to get it the secondary product there are not interested the second product second product will be CH to see Oh NH h to co o NH that is sucks in amide you will be going to get it that's what we find so this is what you can say the reactions so this article should be getting it in this particular one I have given you in a language so this sort of question will be great so these are the preparations of alkyl halides and Iraq limits next we are going to start the properties thank you