Results 331 to 340 of about 451,414 (359)

Diastereoselective radical alkylations of alkyl aryl sulfoxides

Tetrahedron Letters, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ZAHOUILY M, CARON, Giulia, CARRUPT P. A, KNOUZI N, RENAUD P.   +4 more
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S,S-Alkyl S?-alkyl(4-methoxyphenyl)phosphonotrithiolothionates

Bulletin of the Russian Academy of Sciences Division of Chemical Science, 1992
[I / \P--At ~i / Ar-P" + 2RSSR ---~ 2At --P I~ \SR \ s / s (1) (2a~ b) ~3a. b) Ar=4-MeOC~H,: R=Et(a), i-Bu(b), The IR spectra of (3a) and(3b) have bands at (v, cm'l): 3075-3070 w, 3010 w (:C-H, Ar), 1594-1590 s, 1500-1497 s (C'-w-" CAr), 698-696 v.s.br (P--S), 535 s, 515-515-510 m (PS2).
L. A. Al’metkina, A. N. Pudovik, Elvira S. Batyeva, Il'yas S. Nizamov, Vladimir A. Alfonsov   +4 more
openaire   +2 more sources

Alkyl bis(trichloro-t-alkyl) phosphites

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1967
1. As a result of steric hindrance the reactivity of bis(trichloro-t-alkyl) phosphorochloridites toward alcohols diminishes from primary to secondary alcohols, and with tertiary alcohols the reaction does not go. 2. Alkyl bis[1-methyl-1-(trichloromethyl)propyl], alkyl phenyl 2,2,2-trichloro-1,1-dimethylethyl, and dialkyl 1-methyl-1 ...
V. K. Khairullin, V. N. Eliseenkov
openaire   +2 more sources

Alkylation of metals and the activity of metal‐alkyls†

Toxicological & Environmental Chemistry, 1984
The biochemical basis for resistance to metal ion toxicity is emerging though it is complicated by the different resistance mechanisms. Several strategies for resistance to toxic metal ions have been identified: The development of energy driven efflux pumps which keep toxic element levels low in the interior of the cell.
openaire   +2 more sources

Alkylation of germanium halides by aluminium alkyls

Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1967
The alkylation of germanium tetrachloride by trimethylaluminium, methylaluminium sesquichloride, triethylaluminium, and tri-isobutylaluminium has been examined. Tetra-alkylgermanes are formed together with di- and poly-germanes, GenR2n+2. In all cases the monoalkylation of GeCl4 is slow, and the formation of reactive Ge·Al intermediates is postulated ...
J. R. C. Light, F. Glockling
openaire   +2 more sources

t-Alkyl-n-alkyl Orthosilicates [PDF]

Journal of the American Chemical Society, 1953
John R. Ladd, Philip George
openaire   +1 more source

Alkylation

Industrial & Engineering Chemistry, 1956
L. F. Albright, R. N. Shreve
openaire   +1 more source

.alpha.-Alkylation of alkyl alkanesulfonates

The Journal of Organic Chemistry, 1970
William E. Truce, D. J. Vrencur
openaire   +2 more sources

The reaction of alkyl radicals with alkyl diphenylphosphinites

Tetrahedron, 1969
Abstract Methyl and i-propyl radicals have been found to react with methyl diphenylphosphinite to give respectively, methyldiphenylphosphine oxide and i-propyldiphenylphosphine oxide. t-Butyl radicals under similar conditions, initiated the transformation of the ester to methyldiphenylphosphine oxide.
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[Alkylating agents].

Bulletin du cancer, 2011
With the approval of mechlorethamine by the FDA in 1949 for the treatment of hematologic malignancies, alkylating agents are the oldest class of anticancer agents. Even though their clinical use is far beyond the use of new targeted therapies, they still occupy a major place in specific indications and sometimes represent the unique option for the ...
openaire   +2 more sources