Question

acceptable name for (CH3)2CHCH=C(CH3)CH2CH3. 7. Provide an Please give your answer here:

im confused when it comes to the double bond. i know you want it first so it would be a pentane but after that im hesitant as to what it is. can you also draw tge figure. thank you

Answer 1

7 Question Provide an acceptable name for (CH3) CH CH = C(43) CH₂ CH3 uswer! To give acceptable name ie IUPAC nonne of any compound we have give numbering of long ca chain carbon length. @ while numbering of long chain carbon length, we have start from that side p where substituted atom ( carbon atom) will get less or lower number . B ③ we have chose the functional group present in the molecule. ③ if it is only e-c bond system - then it will be alkane, if eze bond system then it will be alkene, if it is CEC bond system then it will be alkyne, so lane', 'ené an 'yue have to give at the end of the name. 1. so, drawing the compound structure 14432 LaCH- & = &-CH2-Etial this is long chain carbon length to these are the substituent. and here we could see, two retty groups are substituted at 2+2 and e-4 carbon in main carbon chain length.

are CH3 5 4 3 2 1 CH-CH= - CH2 - CH3 CH3 CH₂ But if we start showing above, we could see two -elly groups subtituted at e-3 and - e-5 carbon esbou in length. in the the main chain main che Now, As here it is mentioned in rure @ numbering should be started from that side, where the substituted carbon atom will get less orlower number, thens - CH₂ CHO This is right numbering of lowchain carbou length. Also it is a alkene system so at the end of name we have to give "ene² Long chain carbon are six so it is 'nex , IUPAC Name : 12.4-dimethyl hex-3-ene Now more details into IUPAC name for these compound. Here two types of structure on can be representated. 4 CH2 CH3 CH3 ere 1 CH3 Ctznel le=é = CH2CH3 H case-1 cHiz Case -2

and its substituenta Now, considering alkene 4413 case-1 CH H₂ CH3 criz (c=c - HH CH3 give privity accross for this type we have the double bond. like to - CH? pririty depends Oct on atomic number on total atomic weight of substituent - to the alken. same privity on the same side so for that it will be as eis' or CZ) thus IUPAC Name : For case 1 type I is - 2,4-dimethylhex-3-ene oo, (2)-2,4-dimethylhex-3-ene se 2 (CH3-CH) chiz y "YCH2 CH3) 1 same pririty groups are opposite to each other along the e-c: soffor that it will be trans' oo (E) thus IUPAC name for case 2 type s trans-2,4-dimethyl-3-ene on (E)-2, A-dimethasshex-zene