Reagent 1 - Br2/h
There are possibilities of formation of two radical. But 2° radical is more stable than 1°. Hence we get more substituted bromoalkane as product.
Product 1 - E
E undergoes elimination by strong bulky base LDA, so we get the terminal alkene as the product.
Alkene on treatment with Cl2, gives dihalides.
Dihalides on double elimination by the reagent c (NaNH2/H2O), we get the alkyne. At first we get alkene with 1 equivalent of reagent. Then on the second equivalent of reagent we get the alkyne
Reagent 3 : 1.NaNH2/heat , 2. H2O
Product 2 : F
F on hydroboration oxidation reaction gives alcohol. The alcohol tautomerise to give aldehyde as product.

As you wanted to know only product 1, so that corresponding mechanism is shown below -

** Hopefully this would be helpful. If you don't understand, comment below.
what is product 1? A NaOH G Heated KOH Reagent 1 Reagent 2 Product 1 B...
what is reagent 2?
A NaOH G Heated KOH Reagent 1 Reagent 2 Product 1 B HgSo. / H2SO4 H Br/ hv с 1.) Na NH2/ heat 2.) H2O LDA OH C1 D Br E к Cl2 Reagent 3 1.) Sia BH home Product 2 CI F NBS/hv 2) HẠO, NaOH
А NaOH Heated KOH Reagent Reapeut Product 1 Hgso/H.O H Br/h 144a HLV Pa at 2.H0 . LDA OH CI: Repeat 1.) Su BH Product 2 2.)H,O, NOH NBS/ 50% H,SO4 Н,0 ОН ОН ОН ОН т ОН A с D
And what about REAGENT #3?
For the following multistep reaction, what is Reagent 2? NO Heated KOH Reagent Reagrut 2 Product 6/ HỘ, C 1. heat 2.) H0 LDA OM ch Reagra 1) BH Protect ve NBS 1) HO, NHOật
match the right reagent
3 OH + enantiomer + enantiomer 5 CO A.) PBrs B.) NBS, hv C.) D.) NaOH E.) NaNH2 F.) Br2 G.) HCI H.) Cl2, H2O 1.) HBO J.) H2 (1 eq), Pt K.) Na, NH3 L.) H2SO4, H20 M.)1. Hg(OAC)2 0.) N.) 1. mCPBA 2. H+, H2O 2. NaBH4 P.) 1. BH3 2. H2O2, NaOH 3 OH + enantiomer + enantiomer 6 CO A.) PBrs B.) NBS, hv C.) D.) NaOH E.) NaNH2 F.) Br2 G.)...
For the following multistep reaction, what is Reagent 1? A NON G Heated KOH Reset Repu2 Product H60/ MÔN H Br/ 1. Na 2.JHO . LDA CE 0 Reagent 1) Sa HÔ NHOH Product KOEN G Harted KOH He$0./ H. o. Dra/h 1. NNW/heal TOTAL D NIS
In each reaction box, place the best reagent and conditions from the list below. 1) Br 2) NBS, ROOR, hv HBr, ROOR, hvBr2, H20 CH3COO Br2 BH/THF Br2. hvNHHB PBrs H202, NaOH, H (CH3)CO
What is the major product is this reaction sequence? Cl2, hv 5 Hg(OAc)2, H20 NaBH4 Br2 NaOET EtOH FeBr3 OH OH OH ot Br Br Br A B с D ΟΑ B D Which is the major product of this reaction? CN 1. EtMgBr 2. acid workup one OH or one A B с D B оооо What is the major product of this reaction? 1. aq. NaOH 2. acid workup NH он for HN. NH но. он NH2 -он...
Will rate!
NaOH H2O 0 What is the major product of the above reaction? What is the major product of the following reaction? HgSO4 H,SO4, H,0 он В о он о Ос B ОА. 요 NaOH H2O What is the major product of the above reaction? 01 0-7 What is the best method to synthesize the above compound? Br2 CI AICI: FeBra CI Br, NH NH2 NBS KOBu AlCl3 Febrg KOH hv Br2 CL NH NH2 NBS KOBU" FeBr AICI,...
In each reaction box, place the best reagent and conditions from the list below. 1) 2) Br 3) CH3CH2CH2CI, AlCl3 HNO3. H2S04 NBS, ROOR, hv H2 CH3CH2Cl, AICla , AICI AlCl3 NaBH4 Br2, FeBr3 Cl Zn(Hg), HCI Br2 In each reaction box, place the best reagent and conditions from the list below. 1) CHyCH2CH2CI, AlCl 2) 3) 4) mCPBA Pd, H2 BH3THF (CH3)3CO Br2, H20 CHCOO S ROR Br2, FeBr3 HBr Br2 In each reaction box, place the best reagent...
match the right reagent
ОН 7 8 ОН г. . . . . . . + enantiomer A.) PBrs B.) NBS, hv C.) D.) NaOH E.) NaNH2 F.) Br2 G.) HCI H.) Cl2, H2O 1.) HBO J.) H2 (1 eq), Pt K.) Na, NH3 L.) H2SO4, H20 M.)1. Hg(OAC)2 0.) N.) 1. mCPBA 2. H+, H2O 2. NaBH4 P.) 1. BH3 2. H2O2, NaOH