Bredt's rule
In organic chemistry, an anti-Bredt molecule is a bridged molecule with a double bond at the bridgehead. Bredt's rule is the empirical observation that such molecules only form in large ring systems. For example, two of the following norbornene isomers violate Bredt's rule, and are too unstable to prepare:
Bredt's rule - Wikipedia Jump to content From Wikipedia, the free encyclopedia Empirical observation in organic chemistry In organic chemistry , an anti-Bredt molecule is a bridged molecule with a double bond at the bridgehead . Bredt's rule is the empirical observation that such molecules only form in large ring systems. For example, two of the following norbornene isomers violate Bredt's rule, and are too unstable to prepare: Bridgehead atoms violating Bredt's rule in red The rule is named after Julius Bredt , who first discussed it in 1902 [ 1 ] and codified it in 1924. [ 2 ] Anti-Bredt mol
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