E 31 Egorov, I. N. Synthesis of chiral pyrimidin-2(1H)-Ones from n-Carbamoyl amino acids [Electronic resource] / I. N. Egorov, V. L. Rusinov, O. N. Chupakhin // Zeitschrift fur Naturforschung - Section B. Journal of Chemical Science. - 2013. - Vol.68, №11. - С. 1253-1258. - Bibliogr. : p. 1258 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AMINO ACIDS -- CHIRALITY -- CONDENSATION Аннотация: A series of previously unknown pyrimidin-2(1H)-ones containing chiral amino acid fragments was synthesized from 1,1,3,3-tetramethoxypropane and N-carbamoyl derivatives of amino acids under acidic conditions |
L 62 Levit, G. L. Acylative kinetic resolution with chiral acyl chlorides as an efficient preparative approach for enantio pure heterocyclic amines / G. L. Levit, V. P. Krasnov // CHIRALITY 2014. 26-th International Symposium on Chiral Discrimination, ISCD-26, Prague, Czech Repablic, 27-30 July 2014 : book of asbstracts. - Prague, 2014. - 218 (P-099). - Bibliogr. : p. 218 (2 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): HETEROCYCLIC AMINES -- RESOLVING AGENTS -- SYNTHESIS |
L 62 Levit, G. L. Acylative Kinetic Resolution with Chiral Acyl Chlorides as an Efficient Preparative Approach for Enantio Pure Heterocyclic Amines / G. L. Levit, V. P. Krasnov // CHIRALITY 2014 : book of abstr., Prague, Czech Republic, 27-30 July 2014. - 2014. - P. 218 (P-099) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CHIRAL ACYL CHLORIDES -- HETEROCYCLIC AMINES |
S 98 Synthesis of a novel planar-chiral nido-carborane amino acid / A. A. Telegina, D. A. Gruzdev, G. L. Levit, V. P. Krasnov // Russian chemical bulletin. - 2021. - Vol. 70, № 3. - P539-544 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CARBORANE -- PLANAR CHIRALITY -- AMINO ACID -- DEBORONATION Аннотация: The deboronation of enantiomers of planar-chiral benzyl (3-formamido-1,2-dicarba-closo-dodecaboran-1-yl)acetate gave the individual (RP)- and (SP)-enantiomers (ee > 98%) of a new amino acid containing a nido-carborane fragment, (3-ammonio-7,8-dicarba-nido-undecaboran-7-yl)acetic acid. Chiral HPLC methods for the analysis of enantiomeric purity of this compound was developed. |