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E u r o p e a n C o n g r e s s o n
Advanced Chemistry
Advanced Chemistry 2018
J u l y 1 2 - 1 3 , 2 0 1 8
P a r i s , F r a n c e
Page 32
Journal of Organic & Inorganic Chemistry
ISSN: 2472-1123
P
hosphinidene tungsten pentacarbonyl complexes are extremely unstable,
highly reactive and could be generated
in-situ
only. These intermediates
could be trapped easily in presence of various reagents containing π-systems to
afford a number of P-heterocycles. A number of compounds are known to give
phosphinidene intermediates but 2H-azaphosphirene tungsten pentacarbonyl
complex is the most stable precursor for the
in-situ
generation of terminal
phosphinidene complexes. Recently, we found that terminal phosphinidene
tungsten pentacarbonyl complex reacted efficiently with the reagents
containing no π-systems. For example, a reaction of terminal phosphinidene
complex with CCl
4
resulted in dehalogenation, which established the route for
the selective insertion of posphinidene complex into carbon-halogen bonds.
Such reaction also resulted in dehydroiodination. A reaction of triethylamine
with phosphinidene complexes resulted in the formation of primary phosphine
complex via dehydrogenation.
1. A A Khan, C Wismach, P G Jones and R Streubel (2003) An unconventional
route to [(Me
3
Si)
2
HCPCl
2
W(CO)
5
] and its conversion to the structurally
characterized P-chalcogenides (Me
3
Si)
2
HCP(X)Cl
2
[X = S, Se] DaltonTrans.,2483
2. A Ozbolat, A A Khan, G von Frantzius, M Nieger and R Streubel (2007)
Dehydroiodination of iodo- and diiodomethane by a transient phosphinidene
complex. Angew. Chem., Int. Ed. Engl, 46, 2104.
Biography
Arif Ali Khan has recieved his PhD degree in Chemistry from A
M U, Aligarh (India) in 1994. Since then he has gained experi-
ence as Research Associate and Senior Research Associate at
IIT-Delhi and as a Post-doctoral Fellow at Technical University
of Braunschweig, Germany. He joined as Lecturer in Chemistry
at GGSIP University, New Delhi in 2005. His research interests
are in the area of Coordination Chemistry, Organophosphorus
Chemistry, Organometallic Chemistry, Metal Ion Catalysed/Pro-
moted Organic Synthesis and Synthesis of Biofuels/ Biodiesel.
He has published several research papers in reputed journals.
He has successfully completed a number of national projects
and international research projects.
khanaarif@hotmail.comChemistry of phosphinidene intermediates and their applications
Arif Ali Khan
Guru Gobind Singh Indraprastha University, New Delhi, India
Arif Ali Khan, J Org Inorg Chem 2018, Volume: 4
DOI: 10.21767/2472-1123-C2-005