sigmatropic shift
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sigmatropic shift [¦sig·mə¦träp·ik ′shift]

(organic chemistry)

A rearrangement reaction that consists of the migration of a sigma bond (that is, the sigma electrons) and the group of atoms that are attached to it from one position in a chain or ring into a new position.

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No references found			Sigizmund Valk Sigizmund Voislav SIGLA Siglufjörður sigma sigma algebra Sigma and Pi Bonds sigma bond sigma factor sigma field sigma finite sigma function Sigma Functions sigma hyperon sigma phase sigma pile sigma ring sigma-delta analog-to-digital converter sigma-delta converter sigma-delta digital-to-analog converter sigma-delta modulator sigma-minus hyperonic atom sigma-T sigmaspire sigmatron Sigmatropic reaction sigmatropic shift sigmoid sigmoid colon sigmoid distortion sigmoidal dune sigmoidal fold sigmoiditis sigmoidoscope Sigmund Feist Sigmund Freud Sigmund Herberstein Sigmund Jahn Sigmund Jähn Sign sign bit sign check indicator sign convention sign digit sign flag Sign Language sign of aggregation Sign of the Cross sign of the zodiac sign on sign position			Sigma-algebra Sigma-Bond-to-Ligand Charge Transfer sigma-delta analog-to-digital converter Sigma-delta converter sigma-delta digital-to-analog converter Sigma-Delta Modulator Sigma-Delta Modulator Sigma-Dependent Pi-Orbital Electronegativity model sigma-minus hyperonic atom Sigma-Point Kalman Filter Sigma-ring sigma-T SIGMAA SIGMALOG SIGMAP Sigmaplot Worksheet sigmas sigmas sigmas sigmas Sigmas Against Teen-Age Pregnancy Sigmas Waging War Against Cancer sigmaspire sigmate sigmate sigmate Sigmatism Sigmatism Sigmatism sigmatron Sigmatropic reaction Sigmatropic shift SIGMBI SIGMET SIGMETRICS SIGMICRO SIGMIS SIGML SIGMM SIGMOBILE SIGMOD Sigmodon Sigmodon Sigmodon Hispidis Sigmodon Hispidis Sigmodon hispidus Sigmodont Sigmodontini Sigmodontini sigmoid sigmoid sigmoid sigmoid Sigmoid arteries Sigmoid arteries Sigmoid arteries Sigmoid arteries sigmoid artery sigmoid cavity sigmoid cavity sigmoid cavity

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sigmatropic shift (redirected from Sigmatropic reaction)

sigmatropic shift
(redirected from Sigmatropic reaction)