Synthesis of new mono- and bisorganophosphorus proline derivatives with P-C-N moieties
作者:Andrey A. Prishchenko、Mikhail V. Livantsov、Olga P. Novikova、Ludmila I. Livantsova、Valery S. Petrosyan
DOI:10.1002/hc.21358
日期:2017.1
The various methods of aminomethylation of some PH-acids with proline and their derivatives are investigated. The numerous derivatives of proline and corresponding phosphonates, phosphonites, phosphinates, and phosphorane with proline moieties are presented.
quantitative yield, along with their solid state self-assembling properties. This process is extremely simple and highly efficient with little or no traditional synthetic skills and without any chromatographic purification. Synthesis of structurally diverse DKPs has been achieved with a dramatic decrease in the reaction time, the amount/number of solvents used, a significant increase in the yield and nearly complete
[EN] MODULUS MODIFIERS AND FILMS THEREOF<br/>[FR] MODIFICATEURS DE MODULE ET FILMS ASSOCIÉS
申请人:ZYMERGEN INC
公开号:WO2022006145A1
公开(公告)日:2022-01-06
The present disclosure relates to compositions derived from bioreachable molecules, such as amino acids and/or steroids. In particular, the composition can be a monomer, a polymer, or a copolymer derived from an amino acid dimer. Such compositions can optionally include a functionalized steroid.
Synthese der optisch aktiven Dihydro-lysergsäuren. 19. Mitteilung über Mutterkornalkaloide
作者:A. Stoll、J. Rutschmann、W. Schlientz
DOI:10.1002/hlca.19500330222
日期:——
Es wird die Herstellung von rac. Dihydro-lysergsäure aus rac. Dihydro-nor-lysergsäure-methylester und von rac. Dihydro-isolysergsäure(I) aus rac. Dihydro-nor-isolysergsäure(I)-methylester mit Hilfe einer neuartigen Ummethylierungsreaktion beschrieben und der Mechanismus dieser Ummethylierung an Hand weiterer Beispiele erörtert.
A new procedure for the aerobic oxidation of α‐amino acids acylated by pyrrole‐carboxylic acid with triplet dioxygen is introduced. The reaction is general for a variety of pyrrole‐amino acid derivatives and represents a very practical and controllable method for the selective preparation of α‐hydroperoxy‐ or α‐hydroxy‐α‐amino acid diketopiperazines with molecular dioxygen. Furthermore, the non‐catalyzed