Tri(tert-butyl)phosphinoxid, -imin, -methylen und -boran / Tri(tert-butyl)phosphine Oxide, Imine, Methylene and Borane

1978 ◽  
Vol 33 (12) ◽  
pp. 1556-1558 ◽  
Author(s):  
Hubert Schmidbaur ◽  
Günter Blaschke
Keyword(s):  
Thermal Decomposition ◽  
Phosphine Oxide ◽  
Steric Hindrance ◽  
Reductive Elimination ◽  
Tert Butyl

Abstract Tri(tert-butyl)phosphine Oxide, Imine, Methylene, Borane Tri(tert-butyl)phosphine oxide, imine, methylene and borane have been prepared and their properties investigated. The imine is chemically inert due to strong steric hindrance. Its thermal decomposition at 200 °C leads to tri(tert-butyl)-pliosphine, in contrast to the methylene analogue which undergoes reductive elimination of isobutene. Both the oxide and borane are thermally very stable (> 250 °C).

Thermal decomposition of trimethylsilyl tert-butyl persuccinate

1981 ◽  
Vol 30 (12) ◽  
pp. 2333-2336
Author(s):  
G. A. Razuvaev ◽  
G. V. Basova ◽  
O. S. D′yachkovskaya ◽  
V. A. Dodonov ◽  
S. V. Krasnodubskaya
Keyword(s):  
Thermal Decomposition ◽  
Tert Butyl

Effect of ionic liquids on the thermal decomposition process of tert-butyl peroxybenzoate (TBPB) by DSC

2019 ◽  
Vol 671 ◽  
pp. 127-133 ◽  
Author(s):  
Jun-Cheng Jiang ◽  
Li Li ◽  
Jia-Jia Jiang ◽  
Yan Wang ◽  
Siu-Ming Lo ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Ionic Liquids ◽  
Decomposition Process ◽  
Thermal Decomposition Process ◽  
Tert Butyl

The thermal decomposition of bis(trispyrrolidino phosphine oxide) tetranitrato uranium(IV)

1981 ◽  
Vol 49 (2-3) ◽  
pp. 247-258 ◽  
Author(s):  
M.E. Brown ◽  
C.P.J. Van Vuuren ◽  
A. Litthauer
Keyword(s):  
Thermal Decomposition ◽  
Phosphine Oxide

ChemInform Abstract: GAS PHASE THERMAL DECOMPOSITION OF TERT.-BUTYL ALCOHOL

1974 ◽  
Vol 5 (38) ◽  
pp. no-no
Author(s):  
DAVID LEWIS ◽  
MARK KEIL ◽  
MICHAEL SARR
Keyword(s):  
Thermal Decomposition ◽  
Gas Phase ◽  
Butyl Alcohol ◽  
Tert Butyl ◽  
Tert Butyl Alcohol

Synthetic and kinetic studies of the reversible addition of a bridging NSN fragment to the electron-rich heterocycles (R2PN)(SN)2 (R = Me, Ph, F)

1984 ◽  
Vol 62 (4) ◽  
pp. 712-715 ◽  
Author(s):  
Neil Burford ◽  
Tristram Chivers ◽  
Richard T. Oakley ◽  
Tom Oswald
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Nmr Spectroscopy ◽  
Kinetic Studies ◽  
Reductive Elimination ◽  
Membered Ring ◽  
High Yield ◽  
Kinetic Measurements ◽  
Bicyclic Compounds ◽  
Reversible Addition

The oxidative addition of Cl2 (using SO2Cl2) to the six-membered ring (R2PN)(SN)2 (R = Me, Ph) produces the mixed phosphazene–thiazyl heterocycles, (R2PN)(NSCl)2, which react with Me3SiNSNSiMe3 to give the bicyclic compounds R2PS3N5. The latter undergo thermal decomposition, at ca. 100 °C in toluene, via reductive elimination of an NSN unit to regenerate (R2PN)(SN)2 in high yield. Kinetic measurements of this process, using 31P nmr spectroscopy, yield an activation energy of 102.4 ± 6.0 kJ mol−1 for the release of the NSN fragment from Me2PS3N5. The thermolysis route has been used to prepare the thermally unstable (F2PN)(SN)2, characterized as a 1:1 adduct with norbornadiene.

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