Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 25 to 36 of 588 entries
Sorted by: Best Match Show Resources per page
Disulfides of manganese carbonyl. Synthesis of Mn(2)(CO)(7)(mu-S2) and its reactions with tertiary phosphines and arsines.

Inorganic chemistry

Adams RD, Kwon OS, Smith MD.
PMID: 12444771
Inorg Chem. 2002 Dec 02;41(24):6281-90. doi: 10.1021/ic0203670.

The reaction of Mn(2)(CO)(9)(NCMe) with thiirane yielded the sulfidomanganese carbonyl compounds Mn(2)(CO)(7)(mu-S(2)), 2, Mn(4)(CO)(15)(mu(3)-S(2))(mu(4)-S(2)), 3, and Mn(4)(CO)(14)(NCMe)(mu(3)-S(2))(mu(4)-S(2)), 4, by transfer of sulfur from the thiirane to the manganese complex. Compound 3 was obtained in better yield from the reaction...

"One-pot" two-step synthesis of aryl sulfur compounds by photoinduced reactions of thiourea anion with aryl halides.

Organic letters

Argüello JE, Schmidt LC, Peñéñory AB.
PMID: 14572267
Org Lett. 2003 Oct 30;5(22):4133-6. doi: 10.1021/ol035545n.

[reaction: see text]. The photoinduced reactions of aryl halides with the thiourea anion afford arene thiolate ions in DMSO. These species without isolation, and by a subsequent aliphatic nucleophilic substitution, S(RN)1 reaction, oxidation, or protonation, yield aryl methyl sulfides,...

A new HPLC method for the simultaneous determination of oxidized and reduced plasma aminothiols using coulometric electrochemical detection.

The Journal of nutritional biochemistry

Melnyk S, Pogribna M, Pogribny I, Hine RJ, James SJ.
PMID: 15539328
J Nutr Biochem. 1999 Aug;10(8):490-7. doi: 10.1016/s0955-2863(99)00033-9.

A new method has been developed that is capable of providing a complete profile of the most common monothiols and disulfides present in plasma or tissue extracts. The method utilizes reversed phase ion-pairing high performance liquid chromatography coupled with...

Competing elimination and substitution reactions of simple acyclic disulfides.

Organic & biomolecular chemistry

Bachrach SM, Pereverzev A.
PMID: 15917895
Org Biomol Chem. 2005 Jun 07;3(11):2095-101. doi: 10.1039/b501370d. Epub 2005 Apr 29.

MP2/aug-cc-pVDZ and B3LYP/cc-pVDZ calculations of the reactions of CH3SSR (R = H or CH3) with fluoride, hydroxide or allyl anion in the gas-phase were performed to determine the mechanism for both elimination and substitution reactions. The elimination reactions were...

Regioselective bond cleavage in the dissociative electron transfer to benzyl thiocyanates: the role of radical/ion pair formation.

Journal of the American Chemical Society

Hamed EM, Doai H, McLaughlin CK, Houmam A.
PMID: 16704259
J Am Chem Soc. 2006 May 24;128(20):6595-604. doi: 10.1021/ja056730u.

Important aspects of the electrochemical reduction of a series of substituted benzyl thiocyanates were investigated. A striking change in the reductive cleavage mechanism as a function of the substituent on the aryl ring of the benzyl thiocyanate was observed,...

Nucleophilic perfluoroalkylation of aldehydes, ketones, imines, disulfides, and diselenides.

The Journal of organic chemistry

Pooput C, Dolbier WR, Médebielle M.
PMID: 16626142
J Org Chem. 2006 Apr 28;71(9):3564-8. doi: 10.1021/jo060250j.

Using a procedure analogous to that developed for nucleophilic trifluoromethylation, the perfluoroalkyl anion reagents created by mixing C2F5I and n-C4F9I with tetrakis(dimethylamino)ethylene (TDAE) were effective in their nucleophilic reactions with aldehydes, ketones, imines, disulfides, and diselenides. Irradiation proved beneficial...

The prediction for gas chromatographic retention index of disulfides on stationary phases of different polarity.

Talanta

Gao Y, Wang Y, Yao X, Zhang X, Liu M, Hu Z, Fan B.
PMID: 18968903
Talanta. 2003 Feb 06;59(2):229-37. doi: 10.1016/s0039-9140(02)00500-3.

Quantitative structure-retention relationship (QSRR) models for the gas chromatographic (GC) Kaváts indices of disulfides on four different polarity stationary phase have been developed. Semi-empirical quantum chemical method (AM1) implemented in hyperchem 4.0 was employed to calculate a set of...

Interaction of thioamides, selenoamides, and amides with diiodine.

Bioinorganic chemistry and applications

Hadjikakou SK, Hadjiliadis N.
PMID: 17497011
Bioinorg Chem Appl. 2006;60291. doi: 10.1155/BCA/2006/60291. Epub 2006 Dec 13.

We review the results of our work on the iodine interaction with thioamides, selenoamides, and amides. Complexes with (i) "spoke" or "extended spoke" structures, D . I(2) and D . I(2) . I(2), respectively, (D is the ligand donor)...

Equilibrating C-S bond formation by C-H and S-S bond metathesis. Rhodium-catalyzed alkylthiolation reaction of 1-alkynes with disulfides.

Journal of the American Chemical Society

Arisawa M, Fujimoto K, Morinaka S, Yamaguchi M.
PMID: 16131192
J Am Chem Soc. 2005 Sep 07;127(35):12226-7. doi: 10.1021/ja0527121.

In the presence of a catalytic amount of RhH(PPh3)4 (2 mol %) and 1,1'-bis(diphenylphosphino)ferrocene (dppf) (3 mol %), silylacetylenes reacted with dialkyl disulfides giving 1-alkylthio-2-trialkylsilylethynes in high yields. Alkanethiols liberated in this reaction did not interfere with the reaction,...

Alkoxide- and hydroxide-induced nucleophilic trifluoromethylation using trifluoromethyl sulfone or sulfoxide.

Organic letters

Prakash GK, Hu J, Olah GA.
PMID: 12943400
Org Lett. 2003 Sep 04;5(18):3253-6. doi: 10.1021/ol035045u.

[reaction: see text] The first alkoxide- and hydroxide-induced nucleophilic trifluoromethylation of carbonyl compounds, disulfides, and other electrophiles, using phenyl trifluoromethyl sulfone 1a (sulfoxide 1b) is reported. The trifluoromethyl sulfone 1a or sulfoxide 1b acts as a "CF(3)(-)" synthon. Both...

Inorganic and organic sulfur cycling in salt-marsh pore waters.

Science (New York, N.Y.)

Luther GW, Church TM, Scudlark JR, Cosman M.
PMID: 17769570
Science. 1986 May 09;232(4751):746-9. doi: 10.1126/science.232.4751.746.

Sulfur species in pore waters of the Great Marsh, Delaware, were analyzed seasonally by polarographic methods. The species determined (and their concentrations in micromoles per liter) included inorganic sulfides (

Intrasteric inhibition in redox signalling: light activation of NADP-malate dehydrogenase.

Photosynthesis research

Miginiac-Maslow M, Lancelin JM.
PMID: 16228530
Photosynth Res. 2002;72(1):1-12. doi: 10.1023/A:1016099228450.

Chloroplast NADP-dependent malate dehydrogenase (NADP-MDH, EC 1.1.1.82) is inactive in the dark and activated in the light via a reduction of specific disulfides by thiol-disulfide interchange with thioredoxin, reduced by the photosynthetic electron transfer. Compared to the constitutively active...

Showing 25 to 36 of 588 entries