“sigmatropic shift”的概念、定义、翻译、参考文献-科学参考

单词	sigmatropic shift
释义	sigmatropic shift [¦sig·mǝ¦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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