Organic Chemistry

D

• Claisen rearrangement reaction -


• Concerted -


• Configuration - the permanent geometry of a molecule that results from the spatial ar-
  rangement of its bonds.


• Conformation -


• Conformer -


• Conjugate acid -


• Conjugate base -


• Conjugation - A system of atoms covalently bonded with alternating single and multiple
  (e.g. double) bonds (e.g., C=C-C=C-C).


• Covalent bond - A form of chemical bonding that is characterized by the sharing of pairs
  of electrons between atoms.


• Cracking - The process whereby complex organic molecules such as heavy hydrocarbons
  are broken down into simpler molecules (e.g. light hydrocarbons) by the breaking of
  carbon-carbon bonds.


• Cycloaddition reaction -


• Cycloalkane - An alkane that has one or more rings of carbon atoms in the chemical
  structure of its molecule.

131.4 D

• Debye -


• Decarboxylation -


• Delocalization - The ability of electrons to spread out among pi bonds to provide stabi-
  lization to electronically unstable areas of a molecule.


• Dextrorotatory -


• Diastereomers - Two or more isomers of a molecule which arenotenantiomers of one
  another.


• 1,3 Diaxial interaction - The steric intereaction between two methyl or larger groups
  attached at the 1 and 3 cis positions of cyclohexanes. The cyclohexane is in a higher
  energy state in the ring flip conformation that results in both 1 and 3 positions being
  axial due to steric strain between the 2 groups. This strain does not exist when hydrogens
  are bonded at these positions.


• Diels-Alder reaction -


• Dienophile -


• Dipolar -