16 research outputs found
Unusual reaction of 8-chloro-2-cyclohexyl-4-phenylbenzo[e]-1,2-oxaphosphinine-2-oxide with tetramethylenebis(magnesium bromide)
No full textThe reaction of 8-chloro-2-cyclohexyl-4-phenylbenzo[e]-1,2-oxaphosphinine-2-oxide with ethyl- and phenylmagnesium bromides and tetramethylenebis(magnesium bromide) is a versatile approach to the synthesis of unsymmetrical phosphine oxides. With the latter Grignard reagent, an unusual phosphorus-carbon cleavage also occurs to yield a pentacoordinate phosphorus derivative, 2,3,8,9-bis(4-chlorobenzo)-6-cyclohexyl-6,9-diphenyl-1,7-dioxa-6-phosphaspiro[5.5]deca-1,9-diene. © 2008
Heat treatment in a protective atmosphere as a means of increasing the wear resistance of hard-metal tools
No full textUnusual reaction of 8-chloro-2-cyclohexyl-4-phenylbenzo[e]-1,2-oxaphosphinine-2-oxide with tetramethylenebis(magnesium bromide)
No full textThe reaction of 8-chloro-2-cyclohexyl-4-phenylbenzo[e]-1,2-oxaphosphinine-2-oxide with ethyl- and phenylmagnesium bromides and tetramethylenebis(magnesium bromide) is a versatile approach to the synthesis of unsymmetrical phosphine oxides. With the latter Grignard reagent, an unusual phosphorus-carbon cleavage also occurs to yield a pentacoordinate phosphorus derivative, 2,3,8,9-bis(4-chlorobenzo)-6-cyclohexyl-6,9-diphenyl-1,7-dioxa-6-phosphaspiro[5.5]deca-1,9-diene. © 2008
Unusual reaction of 8-chloro-2-cyclohexyl-4-phenylbenzo[e]-1,2-oxaphosphinine-2-oxide with tetramethylenebis(magnesium bromide)
Get PDFThe reaction of 8-chloro-2-cyclohexyl-4-phenylbenzo[e]-1,2-oxaphosphinine-2-oxide with ethyl- and phenylmagnesium bromides and tetramethylenebis(magnesium bromide) is a versatile approach to the synthesis of unsymmetrical phosphine oxides. With the latter Grignard reagent, an unusual phosphorus-carbon cleavage also occurs to yield a pentacoordinate phosphorus derivative, 2,3,8,9-bis(4-chlorobenzo)-6-cyclohexyl-6,9-diphenyl-1,7-dioxa-6-phosphaspiro[5.5]deca-1,9-diene. © 2008
A new type of Cambrian section at the base of the pre-mesozoic complex of the West Siberian petroleum megabasin (based on Vostok-1 stratigraphic well data, Northern Tomsk Region)
No full textInstability of equilibrium of the liquid dielectric surface and formation of regular cellular structures in the field of a corona discharge
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