Question

What is the major product of the following reaction? HBr (1 eq.) Br Br А Br B с D Br A B С

Answer 1

What is the major product of the following reachen? HBY (leno HBY 741 I Bré 3 At first protonation occwn to the double bend and a 3° carsocation is formed, then the carbocation rearranges from a 3 subtitulate double and to more stable tetrasubsti- tuted alkene ond 2° Carbcation. Then Bro attacks to the double bond and the product is formed. Am option 3 - 0 what is the major product of the following reaction? plane come "come come It's a 14+21 cycloaddition (Diels-alder reaction), as the methyl substituents of the deene are intrans, so they will remain in trans in the product, as this reaction follows a concerted pathway. Am 1. I + B2 1. MaNH2 ne-Br 67 -78°C @ BY 67 -CH3

In stop on the strong ware Mantz form the onion e bromo, and then sowy 2 in Stepmom step from lig derogeneh. aceam to form from olkene in step@bridge occurs to forms a meso 42 din product. so Am option Н Hz CH2 - CH3 THz a minor goes through Hb 1 Here in this compound, the middle of the molecule, so here only 3 types proton will be observed Ho He C- & - 3 Ha, H6 He so, option 0 31 c-ch3 CH31 1 He HI FI ОН اور ان کے HI 314 را کا YHT -20 I transfor Төг Duce to elimination of water a 2 Carbocation is formed but there is a chance Carbocation by of forming 1,24 Shift. Af last slep z adds.