Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Amide fluorides

Phosphonigsaurc-amid-fluoride lassen sich mit Chlor bei anschlieBender Umsetzung mit Wasser, Alkohol, Ace tanhydrid oder Oxiran inPhosphonsaure-amid-fluorideiiber-fiihren219 z.B. ... [Pg.338]

Bei der Synthese von Methan- (63%) oder Ethanthiophosphonsdure-amid-fluorid (36%) aus den Thiophosphonsaure-difluoriden wird bei —78° Ammoniak eingeleitet752. [Pg.435]

LaBt man auf Thiophosphorsaure-difluorid-S-phenylester Ammoniak (1 1,8) in Ether bei —70° einwirkcn, so erhalt man Thiophosphorsaure-amid-fluorid-S-phenylester (31% Sdp. 92°)383. [Pg.553]

Methan- -acylamid-dichlorid E2, 477 Methan- -acylimid-diester E2, 480 Methan- -alkoxycarbonylamid-phenylester E2, 404 Methan- -alkylester-succinimid E2, 405 Methan- -(3-alkyl-ureid)-phenylester E2, 404 Methan- -amid-ethylester E2, 343, 344 Methan- -amid-fluorid E2, 339 Methan- -Anhydrid XII/1, 608 E2, 317 Methan- -anilid-methylcstcr XII/I, 532 Methan- -azid-chlorid E2, 341, 343 Methan- -(2-benzoyl-hydrazid) E2, 325 Methan- -bis-[2-chlor-ethylesler] XII/1, 426 Methan- -bis-fdimethylamid] E2,332, 417... [Pg.1037]

Methan- -amid-fluorid E2, 435 Methan- -amid-0-(2-methoxycarbonyl-l-methyl-vinylester) E2, 464... [Pg.1095]

Arsonigsaure Methan- -dimethyl-amid-fluorid XIII/8, 193... [Pg.130]

As mentioned in Volume 13 of these Reports, 4-oxoazetidin-2-yl phosphonates and phosphinates (19) can be prepared by Arbusov-like reactions between P compounds and 4-acetoxyazetidin-2-one (20). Acid hydrolysis of (19) yields phosphono- and phosphino-aspartic acids (21) which can be converted into peptides with antibacterial activity. Diastereomeric mixtures of phosphono-dipeptides, which can be prepared from racemic dialkyl 1 -aminoalkylphosphonates, can be separated by ion-exchange chromatography. It appears that it is easier to synthesize phosphonodipeptides from these phosphonates as their P-dialkyl esters rather than as the free phosphonic acids. Phosphonic acid analogues of A-Cbz-alanine and -phenylalanine can be converted into ester and amide fluoridates, e.g., (22, R = OMe or NHCHMeg). These fluoridates are the most potent inhibitors of elastase and chymotrypsin yet reported and seem to mimic the natural substrates of these enzymes. ... [Pg.152]

See other pages where Amide fluorides is mentioned: [Pg.339]    [Pg.339]    [Pg.841]    [Pg.1027]    [Pg.1034]    [Pg.1049]    [Pg.1049]    [Pg.1061]    [Pg.1094]    [Pg.1099]    [Pg.102]    [Pg.1078]    [Pg.496]    [Pg.497]    [Pg.204]    [Pg.116]    [Pg.496]    [Pg.497]   


SEARCH



Acid fluorides amide synthesis

Acyl fluorides amides

Amide fluorides synthesis

Carboxylic acid amide fluorides

Sodium amide fluoride

Sulfonic acid amides fluorides

© 2024 chempedia.info