multiple answers dbt

AIEEE 2015 Preparation › Organic Chemistry questions › multiple answers dbt

in which of the following decarboxylation takes place on simple heating ??

ans is 1,3
but why not 1,2,3 ??

#Chemistry #Organic Chemistry

UP 0 DOWN 0 0 8
Post on FacebookPost anonymously?

8 Answers

1

rahul nair ·2009-10-28 20:46:22

2 is B-keto acid....so even i think its 1,2,3.....

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

aieeee ·2009-10-28 22:58:20

i think its just 1,2 !

in 1) ders C=C at the \beta - position.

in 2) ders keto group at \beta - position

in 3) and 4) , ders C=C at the \gamma - position

thus, at 3) and 4) , der can't be decaboxylation by simple heating.

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-10-28 23:12:05

but anyways ans is 1,3

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

aieeee ·2009-10-28 23:13:56

but why 3 ) ?

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-10-28 23:15:58

3 should be naa....resonance.... Ï€-Ïƒ-Ï€

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

aieeee ·2009-10-28 23:25:30

perhaps u r mentining this

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-10-28 23:29:05

no i was mentioning option 3

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-10-29 03:27:03

ok thx everyone......
ans is 1,2

it was my mistake...[2][3]

UP 0 DOWN 0
Post on FacebookPost anonymously?

Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω