Radical Azidonation of Aldehydes.

Metal-free cascade radical cyclization of 1,6-enynes with aldehydes.

A new and efficient metal-free cascade cyclization of 1,6-enynes with aldehydes is developed for the synthesis of tricyclic fluorene derivatives. The reaction involves a radical process and one C(sp(2))-C(sp(2)) and two C(sp(2))-C(sp(3)) bonds are formed simultaneously in one pot by using PivOH and TBHP.

Investigation of hydroxyl radical recycling reactions in aldehydes

Observations of total peroxy nitrates and aldehydes: measurement interpretation and inference of OH radical concentrations

We describe measurements of total peroxy nitrates (6PNs), NO2, O3 and several aldehydes at Granite Bay, California, during the Chemistry and Transport of the Sacramento Urban Plume-2001 (CATSUP 2001) campaign, from 19 July–16 September 2001. We observed a strong photochemically driven variation of 6PNs during the day with the median of 1.2 ppb at noon. Acetaldehyde, pentanal, hexanal and methac...

On the importance of prereactive complexes in molecule-radical reactions: hydrogen abstraction from aldehydes by OH.

In this work, the OH + formaldehyde and OH + acetaldehyde reactions have been characterized using accurate ab initio methods with large basis sets. The results clearly indicate that the reaction occurs by hydrogen abstraction, and that the OH addition channel is unfavorable. Close to zero (for formaldehyde) and negative (for acetaldehyde) activation energy values are obtained, which are in exce...

Composition of the Aldehydes of Clostridium Butyricum Plasmalogens. Cyclopropane Aldehydes.

Recent advances in gas-liquid chromatography have permitted the separation and identification of aldehydes derived from plasmalogens, and a number of analyses of aldehydes from animal plasmalogens have been reported (l-3). Bacterial plasmalogens, on the other hand, have only recently been discovered, and no analyses of their fatty aldehydes are available (4-6). Such analyses would be of particu...