37714-06-0Relevant academic research and scientific papers
Asymmetric synthesis of α-aminophosphonates via diastereoselective addition of phosphite to chiral imine derivatives
Chung, Sung-Kee,Kang, Dong-Ho
, p. 21 - 24 (1996)
One pot three component reactions employing homochiral (1S)-(+)-camphorsulfon-amide-derived carbamate, aldehydes and diethyl phosphite at 0°C was found to give protected (S)-α-aminophosphonates in high enantiomeric purities.
Double asymmetric induction in the synthesis of enantiomeric α-aminophosphonic acids mediated by sulfinimines
Lyzwa, Piotr
, p. 15 - 19 (2014/02/14)
A double asymmetric induction in the synthesis of α-aminophosphonic acids is described. It involves the nucleophilic addition of anions of enantiomeric dimenthyl phosphites to both (+)-(S)- and (-)-(R)-enantiomers of N-(p-tolylsulfinyl)benzaldimine and subsequent acidic hydrolysis of the adducts formed. The match and mismatch effects were observed.
Biocatalyzed kinetic resolution of racemic mixtures of chiral α-aminophosphonic acids
Kozyra, Kinga,Brzezinska-Rodak, Malgorzata,Klimek-Ochab, Magdalena,Zymanczyk-Duda, Ewa
, p. 32 - 36 (2013/06/05)
Several fungal species namely: Aspergillus niger, Aspergillus parasiticus, Penicillium funiculosum, Trigonopsis variabilis and two different strains of Fusarium oxysporum were tested toward racemic mixtures of following phosphonic acids: 1-amino-2-methylp
Direct enantioselective three-component kabachnik-fields reaction catalyzed by chiral bis(imidazoline)-zinc(II) catalysts
Ohara, Mutsuyo,Nakamura, Shuichi,Shibata, Norio
, p. 3285 - 3289 (2012/01/30)
A direct three-component reaction of aldehydes, amines and diaryl phosphites was catalyzed by a zinc(II) complex of 1,3-bis(imidazolin-2-ly) pyridine (pybim) giving the corresponding α-aminophosphonates in good yield with good enantioselectivity. The reac
1-(a-Aminobenzyl)-2-naphthol: A new chiral auxiliary for the synthesis of enantiopure a-aminophosphonic acids
Metlushka, Kirill E.,Kashemirov, Boris A.,Zheltukhin, Viktor F.,Sadkova, Dilyara N.,Buechner, Bernd,Hess, Christian,Kataeva, Olga N.,McKenna, Charles E.,Alfonsov, Vladimir A.
supporting information; experimental part, p. 6718 - 6722 (2010/02/28)
A new diastereoselective synthesis of a-aminophosphonates has been developed, based on the reaction, in the presence of trifluoroacetic acid, of trialkyl phosphites with chiral imines derived from (R)- or (S)-l-(ot- aminobenzyl)-2-naphthol. The reaction p
Organocatalytic enantioselective hydrophosphonylation of sulfonylimines having a heteroarenesulfonyl group as a novel stereocontroller
Nakamura, Shuichi,Nakashima, Hiroki,Yamamura, Akiko,Shibata, Norio,Torua, Takeshi
supporting information; experimental part, p. 1209 - 1212 (2009/06/17)
Organocatalytic enantioselective hydrophosphonylation of imines having the a heteroarenesulfonyl group afforded the respective products with high enantioselectivity. Both enantiomers of α-amino phosphonates were obtained by using different Cinchona alkalo
Straightforward synthesis of depsiphosphonopeptides via Mannich-type multicomponent condensation
Xu, Jiaxi,Gao, Yuanhe
, p. 783 - 788 (2007/10/03)
A straightforward method for the synthesis of depsiphosphonopeptides via a Mannich-type multicomponent condensation of simple starting materials, such as benzyl carbamate, aldehydes, and 1-carbethoxyalkyl phosphorodichloridites, was developed. Compared to
Stereoselective Addition of Dimethyl Thiophosphite to Imines
Tongcharoensirikul, Pakamas,Suarez, Alirica I.,Voelker, Troy,Thompson, Charles M.
, p. 2322 - 2326 (2007/10/03)
Dimethyl thiophosphite (DMTP) was synthesized from dimethyl phosphite, and the diastereoselective addition of DMTP to benzaldimines bearing chiral auxiliary groups was examined. Yields of the product α -aminophosphonothionates ranged from 17% to 75% after chromatography. The addition of DMTP to the benzaldimine derived from (S)-phenylglycinol afforded the highest diastereoselectivity (83:17), whereas addition of DMTP to the benzaldimine derived from threonine methyl ester and alanine methyl ester were far less diastereoselective, affording 38:62 and 61:39 ratios, respectively. Addition of DMTP to the benzaldimine derived from (R)-α-methylbenzylamine (78:22) and (S)-serine methyl ester (73:27) were intermediate in selectivity. DMTP addition to the imines formed between serine methyl ester and acetaldehyde and isobutyraldehyde gave 55:45 and 70:30 ratios, respectively, with the diastereoselectivity corresponding roughly to the size of the α-alkyl group. The stereochemistry of the newly formed α-stereocenters resulting from the addition of DMTP to (S)- and (R)-phenylglycinol benzaldimines was confirmed by conversion of the product α-aminophosphonothionates to the known enantiomers of phosphonophenylglycine.
A new efficient procedure for asymmetric synthesis of α-aminophosphonic acids via addition of lithiated bis(diethylamino)phosphine borane complex to enantiopure sulfinimines
Mikolajczyk, Marian,Lyzwa, Piotr,Drabowicz, Jozef
, p. 2571 - 2576 (2007/10/03)
The addition of lithiated bis(diethylamino)phosphine borane complex to enantiopure p-toluenesulfinimines is highly diastereoselective, affording the corresponding addition products with high efficiency (yields from 72 to 100%). The addition products were readily converted into α-amino-α-arylmethylphosphonic acids with high enantiomeric purities (from 72 to >98%).
Asymmetric synthesis of aminophosphonic acids
Miko?ajczyk, Marian,?yzwa, Piotr,Drabowicz, Józef
, p. 157 - 160 (2007/10/03)
A new synthesis of chiral α- and β-aminophosphonic acids is described which involves a highly diastereoselective addition of phosphite and phosphonate anions to enantiopure sulfinimines.
