A two step synthesis of 2-oxo-2-vinyl 1,3,2-dioxaphospholanes and -dioxaphosphorinanes
作者:Michel Maffei、Gérard Buono
DOI:10.1016/j.tet.2003.08.067
日期:2003.10
involving a transesterification between a diol and diethyl phosphite followed by a palladium-catalyzed coupling of the so-obtained cyclic phosphite with vinyl bromide. Theoretical DFT calculations have been performed on phosphonate and phosphite anions models in order to estimate stereoelectronic effects in five-membered and six-membered ring compounds.
Provided is a method for producing an alkenyl phosphorus compound which can produce an alkenyl phosphorus compound efficiently even with a smaller amount of a catalyst used than that used conventionally, and further which can maintain catalytic activity to produce an alkenyl phosphorus compound in high yield even at a larger reaction scale, and which can also be applied to quantity synthesis at an industrial scale using a conventional batch reactor or continuous reactor.
A method for producing an alkenyl phosphorus compound, comprising:
a step of reacting a compound represented by the following formula (1):
[In formula (1), R
1
represents OR
3
or R
3
, R
2
represents OR
4
or R
4
, and R
3
and R
4
represent, for example, each independently a substituted or unsubstituted alkyl group.]
with a compound represented by the following formula (2):
R
5
—C≡CH (2)
[In formula (2), R
5
represents, for example, a hydrogen atom, or a substituted or unsubstituted alkyl group.]
to produce the phosphorus alkenyl compound presented by at least any of the following formulas (3a) or (3b):
[In formulas (3a) and (3b), R
1
and R
2
have the same meaning as defined in formula (1), and R
5
has the same meaning as defined in formula (2).],
In which the compound represented by formula (1) is reacted with the compound represented by formula (2) using a transition metal catalyst, and a phosphorus oxo acid compound having an intramolecular P—H bond.
Provided is a method for producing an alkenyl phosphorus compound which can produce an alkenyl phosphorus compound efficiently even with a smaller amount of a catalyst used than that used conventionally, and further which can maintain catalytic activity to produce an alkenyl phosphorus compound in high yield even at a larger reaction scale, and which can also be applied to quantity synthesis at an industrial scale using a conventional batch reactor or continuous reactor.
A method for producing an alkenyl phosphorus compound, comprising:
a step of reacting a compound represented by the following formula (1):
[In formula (1), R1 represents OR3 or R3, R2 represents OR4 or R4, and R3 and R4 represent, for example, each independently a substituted or unsubstituted alkyl group.]
with a compound represented by the following formula (2):
[In formula (2), R5 represents, for example, a hydrogen atom, or a substituted or unsubstituted alkyl group.]
to produce the phosphorus alkenyl compound presented by at least any of the following formulas (3a) or (3b):
[In formulas (3a) and (3b), R1 and R2 have the same meaning as defined in formula (1), and R5 has the same meaning as defined in formula (2).],
In which the compound represented by formula (1) is reacted with the compound represented by formula (2) using a transition metal catalyst, and a phosphorus oxo acid compound having an intramolecular P—H bond.
Rhodium-Catalyzed Hydrophosphorylation of Terminal Alkynes Leading to Highly Selective Formation of (E)-Alkenylphosphonates: Complete Reversal of Regioselectivity to the Palladium-Catalyzed Counterpart
[EN] METHOD FOR PRODUCING POLYVINYLPHOSPHONIC ACID COPOLYMER<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN COPOLYMÈRE D'ACIDE POLYVINYLPHOSPHONIQUE<br/>[JA] ポリビニルホスホン酸系共重合体の製造方法