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Disulfides formation with

Scheme 4 Intramolecular Disulfide Formation with Azodicarboxylic Acid Derivatives1571... Scheme 4 Intramolecular Disulfide Formation with Azodicarboxylic Acid Derivatives1571...
Scheme 5 Intramolecular Disulfide Formation with Dithiasuccinoylglycine1601... Scheme 5 Intramolecular Disulfide Formation with Dithiasuccinoylglycine1601...
Intramolecular Disulfide Formation with Thallium (Til) Trifluoroacetate... [Pg.108]

Intramolecular Disulfide Formation with Dimethyl Sulfoxide/Acid... [Pg.109]

Intramolecular Disulfide Formation with Chlorosilane/Sulfoxide... [Pg.110]

Scheme 10 Bis-disulfide Formation with Air Oxygen and Iodine... Scheme 10 Bis-disulfide Formation with Air Oxygen and Iodine...
Scheme 11 Bis-disulfide Formation with Dimethyl Sulfoxide and Thallium(III) Trifluoroacetate1 071... Scheme 11 Bis-disulfide Formation with Dimethyl Sulfoxide and Thallium(III) Trifluoroacetate1 071...
Scheme 12 Bis-disulfide Formation with Iodine and Chlorosilane/Sulfoxide1 241... Scheme 12 Bis-disulfide Formation with Iodine and Chlorosilane/Sulfoxide1 241...
Scheme 14 Solid-Phase Bis-disulfide Formation with Carbon Tetrachloride and Thallium(III)I1071 Tmb Acm Tmb Acm... Scheme 14 Solid-Phase Bis-disulfide Formation with Carbon Tetrachloride and Thallium(III)I1071 Tmb Acm Tmb Acm...
Site-Directed Interchain Disulfide Formation with Alkoxycarbonylsulfenvl... [Pg.123]

Scheme 15 Site-Directed Interchain Disulfide Formation with 5-Alkoxycarbonylsulfanyl Cysteine Deriv-atives[153,1541... Scheme 15 Site-Directed Interchain Disulfide Formation with 5-Alkoxycarbonylsulfanyl Cysteine Deriv-atives[153,1541...
A further development of the DMSO/H+ method for oxidation of cysteine peptides led to the cysteine-sulfoxide acid-catalyzed intermolecular disulfide formation with a second S-unprotected or acid-labile protected cysteine component as shown in Scheme 19. 1471 The protonation of the sulfoxide by TfOH in the case of 5(0)-Mob or TFA in the case of 5(0)-Acm derivatives provides electrophilicity to the sulfur atom to allow attack by the second S-unprotected cysteine component (formed by the fast deprotection of the 5-Mob group with TfOH in presence of dimethylsulfide) to generate in a site-directed manner the interchain disulfide bond. Although extensive experience with this method has not been accumulated for interchain disulfide bridging, it has been successfully applied for intrachain site-directed disulfide bond formation in chicken calcitonin-gene-related peptide.1 79 ... [Pg.128]

Side Products in Disulfide Formation with Ellman s Type Reagents... [Pg.180]

The sultam, 32, has been prepared from the monocyclic precursor 98 followed by treatment with basic H2S. Oxidative disulfide formation with either molecular oxygen or hydrogen peroxide then yields the product (Equation 20) <2005HCA1208>. [Pg.176]

Mercaptans can be reacted with elemental sulfur at moderate temperatures (50-120°C) in the presence of alkaline catalysts, such as trialkylamines, to produce polysulfides. The first step in the reaction sequence is always disulfide formation (with liberation of H2S). The subsequent insertion of additional sulfur atoms occurs readily. The number of sulfur atoms inserted will depend on the molar ratio of sulfur to mercaptan employed, according to the stoichiometry of the following equations ... [Pg.3095]

See other pages where Disulfides formation with is mentioned: [Pg.106]    [Pg.254]    [Pg.792]    [Pg.406]    [Pg.417]    [Pg.934]    [Pg.251]    [Pg.255]    [Pg.233]    [Pg.83]    [Pg.254]    [Pg.248]   


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Disulfide formation

Disulfide formation with

Disulfide formation with

Disulfide formation with pyridyl

Disulfides formation

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