Scavenger compounds like 2-butanol increase the yield of secondary organic aerosols when pinene is subjected to this reaction.  
,6-secosterol is a signature product of this reaction within atherosclerotic plaque.  Scavenger compounds like 2-butanol increase the yield of secondary organic aerosols when pinene is subjected to this reaction.  In this reaction, which is a series of three reversible 1,3-dipolar addition reactions, one of the more stable intermediates involves the reversion of a cyclic compound to a carbonyl and a carbonyl oxide, the latter of which is sometimes called the Criegee intermediate.  This reaction catalyzes the opposite conversion of the Wittig reaction, and harsher alternatives to this reaction involve the use of osmium tetroxide or permanganate.  For 10 points, name this reaction, a useful tool in locating double bonds in organic molecules, in which alkenes or alkynes are converted to carbonyl compounds by a triatomic allotrope of oxygen.
,6-secosterol is a signature product of this reaction within atherosclerotic plaque.  
ozonolysis