The Drosophila indirect flight muscles (IFM) rely on an enhanced stretch-activation response to generate high power output for flight. The IFM is neurally activated during the male courtship song, but its role, if any, in generating the small amplitude wing vibrations that produce the song is not known. Here, we examined the courtship song properties and mating behavior of three mutant strains ...

An efficient synthesis of vinylphosphonates is described. This involves the reaction of alkyl cyanoformates and dialkyl acetylendicarboxylates in the presence of trialkyl phosphites. The 1H, 13C NMR, and 31P NMR spectra of vinylphosphonates having different substitution are consistent with the presence of two geometrical isomers.

Ionic liquids such as 1,3-dialkylimidazolium salts make excellent catalysts and solvents for synthesis of dialkyl 2-(dialkoxyphosphoryl)-3-(1-oxo-1-H-phthalazin-2-yl)succinates from 2H-phthalazin-1-one, dialkyl acetylenedicarboxylates, and trialkyl phosphites. Under similar conditions, triphenyl phosphite led to dialkyl 2-(diphenoxyphosphoryl)-3-(1-oxo-1-H-phthalazin-2-yl)succinates. The ionic ...

ionic liquids such as 1,3-dialkylimidazolium salts make excellent catalysts and solvents for synthesis of dialkyl 2-(dialkoxyphosphoryl)-3-(1-oxo-1-h-phthalazin-2-yl)succinates from 2h-phthalazin-1-one, dialkyl acetylenedicarboxylates, and trialkyl phosphites. under similar conditions, triphenyl phosphite led to dialkyl 2-(diphenoxyphosphoryl)-3-(1-oxo-1-h-phthalazin-2-yl)succinates. the ionic ...

The reaction  between  trialkyl  phosphites  with  dialkyl  actylenedicarboxylates  in the presence of 2-hydroxyquinoline  (2-quinolinol)  leads  to  β-aminophsphonates derivatives  which  they  have  many applications in medicinal chemistry. When the reaction was performed by triphenylphosphite, a new pyrano quinoline  compounds  were obtained  in  fairly  good  yields. These  compounds also  ...

N-Phthaloyl-alanylazide reacts smoothly with trialkyl phosphites producing the corresponding αaminophosphates. With dialkyl hydrogenphosphonates in the presence of benzoyl peroxide, amidophosphates were the isolated products whereas the oxoaziridin-1-yl-phosphonic diamide was preferentially provided from the reaction of the azide with tris(dimethylamino)phosphine. The azide was also allowed to ...

To the Editor: we had both pools evaluated at another laboratory by a continuous-flow (AutoAnalyzer II) method involving the Liebermann-Burchard determination of cholesterol after M&2-Hep (92mmol Mn2 per liter) precipitation of lipoproteins (3, 6). Values obtained for HDL-C in serum with Mg24-Phos, Isopol, and MnS+Hep, by use of the one enzymic procedure on the KDA, all exhibited significant po...