61300-75-2Relevant academic research and scientific papers
Insertion of phosphinidene complexes into the P-H bond of secondary phosphine oxides: A new version of the phospha-Wittig synthesis of P=C double bonds
Hao, Yanwei,Wu, Di,Tian, Rongqiang,Duan, Zheng,Mathey, Fran?ois
, p. 891 - 893 (2016/01/15)
Terminal phosphinidene complexes [RP-W(CO)5], as generated at 60 °C in the presence of copper chloride from the appropriate 7-phosphanorbornadiene complexes, react with secondary phosphine oxides Ar2P(O)H to give the insertion products into the P-H bonds. After metalation with NaH, these products react with aldehydes to give the corresponding phosphaalkenes which are trapped by dimethylbutadiene.
Using monovalent phosphorus compounds to form P-C bonds
Ng, Yong Xiang,Mathey, Francois
supporting information, p. 14140 - 14142 (2014/01/06)
User friendly P-C: Electrophilic terminal phosphinidene complexes [RP-W(CO)5] react with Ar-B(OH)2 to give the corresponding secondary phosphine complexes [{R(Ar)PH}W(CO)5]. This method enables the formation of P-C bonds through the combination of a wide array of heterocyclic and aryl boronic acids with various electrophilic phosphinidene complexes. The final products incorporate a P-H bond that can be used for further transformations. Copyright
Reaction of terminal phosphinidene complexes with dihydrogen
Duffy, Matthew P.,Ting, Liow Yu,Nicholls, Leo,Li, Yongxin,Ganguly, Rakesh,Mathey, Francois
, p. 2936 - 2939 (2012/06/15)
The reaction of H2 with [RP-W(CO)5] (R = Ph, Me) above 120 °C leads, first, to the secondary diphosphine complex (RPH-PHR)(W(CO)5)2 and then to the primary phosphine complex (RPH2)(W(CO)5). On the basis of DFT calculations, the mechanism most likely involves the addition of H2 to the P-W bond, followed by the formation of the radical [RPH-W(CO)5] ? by homolysis of the W-H bond. In the case of [PhNHP-W(CO) 5], the hydrogenolysis takes place at the P-N bond and ultimately produces the secondary diaminophosphine complex ((PhNH)2PH)(W(CO) 5).
The insertion of terminal phosphinidene complexes into the B-H bond of amine and phosphine boranes
Tian, Rongqiang,Mathey, Fran?ois
, p. 11210 - 11213 (2012/11/13)
Push-pull complexation: Transient terminal phosphinidene complexes [RP-W(CO)5] insert at 110 °C into the B-H bonds of L-BH 3 (L = Et3N, Ph3P; see scheme). The reaction is probably driven by an interaction betwee
Stabilization of R-P(H)A Species (A = OH, OR, S-, NH2, NHR, NR2, Cl, Br, I) by complexation with chromium and tungsten pentacarbonyls
Marlnetti, Angela
, p. 1488 - 1492 (2008/10/08)
The 7-phosphanorbornadiene complexes of chromium and tungsten pontacarbonylis react between 120
The "phospha-Wittig" reaction: A new method for building phosphorus-carbon double and single bonds from carbonyl compounds
Marinetti, Angela,Bauer, Siegfried,Ricard, Louis,Mathey, Fran?ois
, p. 793 - 798 (2008/10/08)
The so-called "phospha-Wittig" reagents [(EtO)2P(O)PHR]M(CO)5 (M = Mo, W) are obtained via the reaction of primary phosphine complexes (RPH2)M(CO)5 with lithium diisopropylamide and diethyl chlorophosphate. The corresponding anions [(EtO)2P(O) - P-R]M(CO)5 react with carbonyl compounds under mild conditions to give the phosphaalkene complexes [R1R2C=PR]M(CO)5. A study of this reaction with R = Ph, R1 = i-Pr, and R2 = H has shown that the kinetic product is the (Z)-phosphaalkene complex, whereas the thermodynamic product is the E isomer. The stereochemistry of these complexes was established by X-ray crystal structure analysis. With α-diketones, only one carbonyl bond is converted into a P=C double bond, probably for steric reasons. Most of the phosphaalkene complexes thus obtained easily react with methanol or 2,3-dimethylbutadiene. The phosphane-Mo(CO)5 complexes synthesized via such a scheme are easily transformed into the corresponding P-sulfides by simple heating with sulfur in toluene. Thus, the "phospha-Wittig" reaction can also be viewed as a new tool for building organophosphorus species with P - C single bonds.
