Explain the delocalized pi bonding system in C6H6 (benzene) and SO2. What orbitals overlap to form sigma bonds? Are they always the same? What do we mean when we say that the electrons associated with the \pi bonds in benzene are delocalized over the entire ...
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(1) the free amino dipeptide aldehydes have a half-life of hours, and some compounds in the family are stabilized by N-acylation; (2) peptide aldehydes have a long history in the literature as potent, cell-permeable protease inhibitors; and (3) four of our compounds exhibit potent and ...