Alkynes background and questions_KEY

Alkynes background and questions_KEY - Chapter 6 Alkynes...

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Unformatted text preview: Chapter 6 Alkynes 6.1 Functional group ending: “we, Name: CH3CHC'5CH I. \“h WNW: (terminal alkyne) 2- '3th lagefirqtena’ CH3CH2CECCH2CH2CH3 1. "a" Wew‘ty my. (internal aikyne) 2- Emmi! ~ermpx‘1 aux-qu Draw: di—tert—«butylacetylene propargyl group: £33 a“: W3 3 c "CH1...— Cky“; "' CE C Hc‘”6&3 C H3 0H3 ‘ 6.2 check out alkyne physical properties 6.3 HCECH Bond angle between (LC: We hybridization of C: ‘3 p # of [I bonds: '1 # of 6 bonds: \ % 3 character: ab Shorter, stronger, bigger 6.4 Rxn of Alkynes a: .a 3%? ‘i‘ H'Rv *‘r CH3C:CCI-13 +H~Br—> (“a c: c.3333 ——> (“3 Q We Hmcfis Q) What is this: {as mimmk 0“ km Aikyneis \es'S reactivethanan NV-wabecause m 6,“ SPL 6mm“ A, \yfin“ 0 anu c.“ {MMU‘t f t» Cation Stablitiy: 3° ‘72“) ’2." \ximqh'c 9-1. \° ) \° q‘m‘ugx “amt 6.5 Addition of Hydrogen Halides to ‘ m CH3Cf—CCH2CH3 + Egg): —> CM fife-ch c MC H3 4 CH3, m7, - Chou-5 m '3 CH3CH2C'ESCH + Br—Br ~+ Eva“ . est *3 6% cu; (haul. _=~ (Lug—Cf??? mow?) W . \owa @mkts- .21 6.6 Addition of water 0“ Q ‘ CH30‘ECCHg +H204“H—> c“ C... -—> “at” ‘ (53 £38” “'5 b Wei—"0‘45 . W. What is this: What is this: W km ‘ “WW (€{\0\5_.,:\’W~\Wv . , ,t , b . CH3CECH+H20+ 2804 ‘* 1‘?“ —* i '5. C827" "~’~C\%.L C ‘2, ‘5 CH?) What'is this: ' W What is this: fiw ‘ WWW This process is caiied: a 5 5. iiGL/QW 6.7 Hydroboration oxidation 1 I, WSWWI beam D u - _ f i CH3CECH+ LBW/TIER -> CH C, a!“ —,> C W . F“ “I 2. “OH, 3202, H20 3 t 7'" H3 ‘3 “7* ‘9‘ What is this: “1“” i“ . . . CH3: cr‘u m “11) Baa What IS fins: (3 m0\ ‘- ’ OJ dLVmsckf M 6.8 Addition of Hydrogen CH3CECH+H2+Pt/C—> Cik%cuic\*\1 @ “bf sh“? 0.5% ova/hm Linlar Catalyst gives M products ( Na or Li Nfig gigs f v anproducts . .:I "I: b cc r “i g;- - ii. '2 f? a“ I CHBCHQCECCHS + Hz. . Lmdlar C1t1135I C 1cE—::.Cl'l2_\e z (Ly/C 'Pb , v H/ \D « .. "Na or L1 .- CH3CH2CZCCH3 + C “150% \A mam-78° \O: c“ Rf; g'cug 6.9 s , . .4 1 ‘ ‘ HCEC® HgC-‘CHZ (31413033 " -- “mg I » Pka= ’2 '3’ Pkam 44 Pka== 6 b * rag Why the difierece? SWMV Md :W‘Qmm“ W tom». 39 (1 deaths we,“ owe}, " 39W 8”" Acid Strength W , {ZflWUcL- CH-agfla N113 .4HCECH-f < I r30 3 .. _ Base Strength I 03130}; 3, chchg’ § mg ? Hcacfi 7' i120“ HF < I j: ' T" I H u v - I. ‘_ 3:); a ; . mg“ . HCECH+ \x‘: HQ, ——> H936 ~é~ &%g V 3k; . - 'gu ' mafia, WW mama»: mad» 6.10 Acetylide Ions Alkyiation Hfié + aflscHZ—gra my; c—cmcwy, ~CCH2033 +’NH2 w» sugacwcm + CHTCch 5531’ ~> c “gm; C E C, Point to rxn: Cfifib‘é‘fx'i \f'O c, N U, “C Half: “‘30 ...
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Alkynes background and questions_KEY - Chapter 6 Alkynes...

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