1,2-rearrangement
A 1,2-rearrangement or 1,2-migration or 1,2-shift or Whitmore 1,2-shift is an organic reaction where a substituent moves from one atom to another atom in a chemical compound. In a 1,2 shift the movement involves two adjacent atoms but moves over larger distances are possible. In the example below the substituent R moves from carbon atom C2 to C3. The rearrangement is intramolecular and the starting compound and reaction product are structural isomers. The 1,2-rearrangement belongs to a broad class of chemical reactions called rearrangement reactions.
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1,2-Wittig rearrangement1,2-migration1,2-shiftAlexandru BalabanAlpha-ketol rearrangementBenzilic acid rearrangementBüchner–Curtius–Schlotterbeck reactionCarbocationHalogen dance rearrangementHydrogen-bridged cationsInsertion reactionLongifoleneNafionOrganic reactionOrganoboron chemistryPinacol rearrangementRearrangement reactionSemipinacol rearrangementSeyferth–Gilbert homologationStevens rearrangementStieglitz rearrangementThermal rearrangement of aromatic hydrocarbonsTrisoxazolinylborateWagner–Meerwein rearrangementWhitmore 1,2 shiftWolff rearrangement
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1,2-rearrangement
A 1,2-rearrangement or 1,2-migration or 1,2-shift or Whitmore 1,2-shift is an organic reaction where a substituent moves from one atom to another atom in a chemical compound. In a 1,2 shift the movement involves two adjacent atoms but moves over larger distances are possible. In the example below the substituent R moves from carbon atom C2 to C3. The rearrangement is intramolecular and the starting compound and reaction product are structural isomers. The 1,2-rearrangement belongs to a broad class of chemical reactions called rearrangement reactions.
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1,2-重排或1,2-遷移或1,2-移位或特莫爾1,2-移位 ...... 烷基的陰離子：即1,2-甲基化位移，1,2-乙基化位移等等。
@zh
A 1,2-rearrangement or 1,2-mig ...... hift, 1,2-ethanide shift, etc.
@en
Um rearranjo 1,2 ou migração 1 ...... madas reações de transposição.
@pt
Un 1,2-riarrangiamento o 1,2-m ...... anuro, 1,2-shift etanuro, ecc.
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Un réarrangement 1,2 ou déplac ...... placement d'éthanure 1,2, etc.
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Una transposición 1,2, migraci ...... sposición de etanuro 1,2, etc.
@es
[1,2]-přesmyk je organická rea ...... ý nebo 1,2-ethanidový přesmyk.
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1,2-重排或1,2-遷移或1,2-移位或特莫爾1,2-移位 ...... 烷基的陰離子：即1,2-甲基化位移，1,2-乙基化位移等等。
@zh
A 1,2-rearrangement or 1,2-mig ...... alled rearrangement reactions.
@en
Um rearranjo 1,2 ou migração 1 ...... madas reações de transposição.
@pt
Un 1,2-riarrangiamento o 1,2-m ...... di carbonio C2 a un altro C3.
@it
Un réarrangement 1,2 ou déplac ...... déplacé du carbone C2 au C3 :
@fr
Una transposición 1,2, migraci ...... e el átomo de carbono C2 a C3.
@es
[1,2]-přesmyk je organická rea ...... ý nebo 1,2-ethanidový přesmyk.
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1,2-přesmyk
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1,2-rearrangement
@en
1,2-riarrangiamento
@it
1,2-重排反应
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Rearranjo 1,2
@pt
Réarrangement 1,2
@fr
Transposición 1,2
@es