The monocondensation product 2, which, in the case of the tert-butyl derivative could be detected 3'P-NMR-spectroscopically in the reaction solution at -90Β°C'21, cannot be observed during the synthesis of 3, apparently because of the drastic reaction conditions[51.
The gas-phase dissociation of a new polyazapolycylic nitramine: Hexanitrohexazaisowurtzitane
β Scribed by Robert J. Doyle Jr
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 313 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
β¦ Synopsis
A recent report described the synthesis of a new polyazapolycyclic ring system, 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12hexaazatetracyclo[5.5.0.05*9.03~'1]dodecane (hexabenzylhexaazaisowurtzitane, HBIW)' by the condensation of benzylamine with glyoxal. Condensation reactions of phenylsubstituted benzylamines with glyoxal were shown to yield six phenyl-substituted HBIW derivatives. The authors of the aforementioned report have recently achieved the synthesis of a similar polyazapolycyclic ring system with the six benzyl groups of HBIW replaced by six nitro groups, 2,4,6,8,10,12-
π SIMILAR VOLUMES
Electrospray ionization tandem mass spectrometry was applied to probe the collision-induced dissociation (CID) of protonated MK-0991 f(4R,5S)-5-[(2-aminoethyl)amino]-N 2 -(10,12-dimethyl-1-oxotetradecyl)-4-hydroxy-L-ornithyl-L-threonyl-trans-4-hydroxy-L-prolyl-(S )-4-hydroxy-(4-hydroxyphenyl)-L-thre
The title reaction has been investigated in the temperature range of 490-573 K. Initial reactant pressures were varied in the range of 0.2-5.2 torr (12) and 2-20 torr (C&,SiH3). The rate of iodine consumption, monitored spectrophotometrically, was found to obey both by initial rate and integrated e
## Abstract **New route to gasβphase OH^.^**: UV photolysis of gaseous __o__βnitrobenzaldehyde forms OH radicals via the transformation into the ketene or __oβ__nitrosobenzoic acid intermediate (see figure). The OH^.^ product is monitored by singleβphoton laserβinduced fluorescence (LIF).magnified
The kinetics of the gas-phase reaction of CH3F with 12 have been studied spectrophotometrically from 629 to 710 K, and were determined to be consistent with the following mechanism: (KIJ squares analysis of the kinetic data taken in the initial stages of reaction resulted in log k4 (M-w) = (11.3 f