Claisen may refer to:
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Rainer Ludwig Claisen, a German chemist
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Claisen rearrangement
The Claisen rearrangement is a powerful carbon–carbon chemical bond, bond-forming chemical reaction discovered by Rainer Ludwig Claisen. The heating of an allyl Vinyl group, vinyl ether will initiate a Sigmatropic reaction, ,3sigmatropic r ...
, a reaction of a allyl vinyl ether to a γ,δ-unsaturated carbonyl
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Claisen condensation
The Claisen condensation is a carbon–carbon bond forming reaction that occurs between two esters or one ester and another carbonyl compound in the presence of a strong base. The reaction produces a β-keto ester or a β- diketone. It is named ...
, a reaction between esters and carbonyl compounds in the presence of a strong base
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Ireland–Claisen rearrangement, a chemical reaction of an allylic ester with strong base
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Claisen isatin synthesis
See also
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5243 Clasien, a minor planet
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