Question

1. BH3 2. H2O2, HO H3C Br2, H2O =CH₂ 7. H₂C NaNH2 CH3CH2-CEC-H CH3CH2Br
fill the blanks for reactants,conditions or products

Answer 1

6) T he BHp ett is a Bity lewis and where B has a incomplete octale. B.tz of double bond. attachs to that carbon which has less steric [ 13 → Bilz celtach's as in the 2 carbon atom as it less steric. has BH - CH It goes through the TS » TA BH2 syn addition It occurs. Mechanism. From reacts and Boron. trisubstituted alkene, BH₂ gives di. alkyl substituted

Энэ Носень онд OOOH migration occurs ОО CHB СА» ЗА Н ол он OH Syn addition occurs. АС» 1. ВНЗ 02 оне.

clic 7 At first & Bridge bromonium ion forms. ECH2 +iBr-Br Bay CH2 CAB - CH3 Hence, By of bridge bromo nium ion is more electronegative, so it gathers more &t character at 3o carbon. So, in the next step to attacks at 3° Carbon which has morre 8+ character than 20 CM .City CH₂ Br (k & CH₂ Сн, он Bromo hydrin 04 CH3 Bra CHB. CH2 -CHZ H₂O CH₂ CHB Br

8 CH₂ CH₂ -c=c-4 This hydrogen is acidic - H as it ý connected to the sp hybridised carbon of more electronegativity. Hoth - c=cQH Na NH2 CH₂ CH, C= 8. SNR attack. Ce=c-CH₂ CH₂ NGNH2 - CH₂ CH₂ - CECH - Cell (=C-CH₂ CH₂