Dialkyl thiophosphites esters

Pudovik, A.N., and Khlyupina, N.L, New method of synthesis of esters of phosphonic and thiophos-phonic acids. Part 25. Addition of mixed dialkyl phosphites, dialkyl thiophosphites, and diallyl phosphite to unsaturated compounds, Zh. Obshch. Khim., 26, 1672, 1956 Chem. Abstr., 51, 3439f, 1957. [Pg.301]

Aldehydes and ketones add dialkyl phosphites under base catalysis, yielding a-hydroxy phosphonic esters 29,89 and dialkyl thiophosphites afford a-hydroxy thiophosphonic esters analogously.90... [Pg.703]

Dialkyl thiophosphites (RO)2P(S)H are also alkylated exclusively on the phosphorus in the Michaelis-Becker reaction, thus affording thiophosphonic esters.303... [Pg.729]

Dialkyl thiophosphites Thiolphosphonic O-monoesters Thionophosphonic acid esters Thiophosphonic acids and esters Thiophosphorous esters... [Pg.269]

Thiopyrophosphorous acid esters from dialkyl thiophosphites... [Pg.194]

Michael addition in the absence of any catalytic agent has been reported for dialkyl and diaryl phosphites and thiophosphites with a-cyanoacrylate esters and a-cyanoacrylic acid.444 Yields of the conjugate addition products were moderate to good. The regiochemistry of this process is the opposite of that previously reported for similar additions to ketene acetals, the latter presumably proceeding by initial protonation of the distal olefinic carbon site.445... [Pg.67]

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