Need help fo organic chemistry?
general formula for arene drive me crazy.
why we write Ar--R,where we are supposed to use 'C' and 'H' like alkane(CnH2n+2) , alkene(CnH2n)
thanks a lot.
Answer:
An arene group represents a group that contains a phenyl component, or a benzene ring. Notations and drawings differ, but some may be drawn in a form of a ring (as you noted), but other drawings also use C and H in their drawings. It is often assumed in diagrams that a benzene ring contains the C and H (unless otherwise noted), and often leave them out to make the diagram simpler and neater.
Ar and R are just abbreviations for groups. Ar-OH-R is just like a standard formula. Im not to sure youd have to look it up in the book. I think Ar stands for aromatic though. you can basically put any aromatic group where the Ar is
haha i had a pretty hard time reading your question, but i think youre just not used to the system.
Arene is like you said the ring with Carbons and Hydrogens also known as the aromatic hydrocarbon, we do this to save time, everyone in the field knows theres gonna be C and H so its unnecessary and wastes time to draw the whole thing.
i dont know if this will help you at all, but i tried my best to understand the question.
C6H5-- is a six membered ring which is seen very often in Organic chemistry. It is written as Ar- for short instead of drawing a ring each time.
Ar = Aromatic (any aromatic group you think)
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