Sodium Iodide → 2,3-Diphenylbuta-1,3-diene

HRID 978909ノート

反応式

HRID 978909 の反応式
Br[CH2:2][C:3]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)=[C:4]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)[CH2:5]Br.[Na+].[I-]>CC(C)=O>[C:7]1([C:4]([C:3]([C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=2)=[CH2:2])=[CH2:5])[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

参加物

4

反応物 2

HCID 5238Sodium IodideHCID 540340061,4-Dibromo-2,3-diphenyl-2-butene

生成物 1

HCID 41291332,3-Diphenylbuta-1,3-diene

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

The process of this invention for synthesis of 2,3-diphenyl-1,3-butadiene is comprised of a four step procedure wherein the starting compound acetophenone is dimerized under an ultra violet reaction process to yield acetophenone pinacol which is subsequently converted to 2,3-diphenyl-2-butene in the step 2 procedure. The 2,3-diphenyl-2-butene is then reacted with N-bromosuccinimide (NBS) in an ultra violet reactor in a CCl4 reaction solvent to form 1,4-dibromo-2,3-diphenyl-2-butene in the step 3 procedure. The 1,4-dibromo-2,3-diphenyl-2-butene is reacted with NaI in a hot acetone solution to yield 2,3-diphenyl-1,3-butadiene in the step 4 procedure.

出典と根拠

ORDレコード
ord-5b3df1e38e1a4f6981f211a9861351a5
出典データセット
uspto-grants-1987_05
特許番号
US04665257

反応ノート

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