- Color-forming composition, color-forming curable composition, lithographic printing plate precursor and plate making method, and color-forming compound
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A color-forming composition contains (A) a radical generator, (B) a compound represented by the following formula (1) and (C) a binder polymer: wherein, in the formula (1), R1 represents a group which reacts with a radical generated from the ra
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Page/Page column 57
(2017/01/23)
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- The chemistry of phosphapeptides: Investigations on the synthesis of phosphonamidate, phosphonate, and phosphinate analogues of glutamyl-γ-glutamate
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The synthesis of the phosphonamidate, 1d, and phosphonate, 1e, analogues of a γ-glutamyl peptide are reported. Michaelis-Albuzov reaction with the alkyl halide, 7b, derived from L-glutamic acid, yielded dimethyl phosphonate, 8b. Selective aminolysis of th
- Malachowski,Coward
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p. 7625 - 7634
(2007/10/02)
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- N-HYDROXYPYRIDINE-2-THIONE CARBAMATES AS AMINIUM RADICAL CATION PRECURSORS. TRANSANNULAR RADICAL CYCLIZATIONS FORMING TROPANES
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N-Methylcyclohept-4-enaminium cation radical, produced from the corresponding N-hydroxypyridine-2-thione carbamate, cyclizes to give, ultimately, tropane and substituted tropanes in high yield.
- Newcomb, Martin,Marquardt, Donald J.
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p. 129 - 132
(2007/10/02)
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- THE INVENTION OF NEW RADICAL CHAIN REACTIONS. PART VIII. RADICAL CHEMISTRY OF THIOHYDROXAMIC ESTERS; A NEW METHOD FOR THE GENERATION OF CARBON RADICALS FROM CARBOXYLIC ACIDS.
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The aliphatic and alicyclic esters of N-hydroxy-pyridine-2-thione are readily reduced by tributylstannane in a radical chain reaction to furnish nor-alkanes.In the absence of the stannane a smooth decarboxylative rearrangement occurs to give 2-substituted thiopyridines.The radicals present in this reaction provoke with t-butylthiol an efficient radical reaction with formation of nor-alkane and 2-pyridyl-t-butyl disulphide.Similarly these carbon radicals can be captured by halogen atom transfer to give noralkyl chlorides, bromides and iodides.With oxygen in the presence of t-butylthiol the corresponding noralkyl hydroperoxides are formed in another radical chain reaction.
- Barton, Derek H. R.,Crich, David,Motherwell, William B.
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p. 3901 - 3924
(2007/10/02)
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- FACILE GENERATION OF DIALKYLAMINYL RADICALS FROM N-HYDROXYPYRIDINE-2-THIONE CARBAMATES. APPLICATION IN KINETIC STUDIES OF SMALL RING CYCLOALKYLAMINYL RADICAL RING OPENINGS
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The preparation of N-hydroxypyridine-2-thione carbamates and the formation of dialkylaminyl radicals from these species are described, and the application of this methodology in kinetic studies of aminyl radical rearrangements is demonstrated.
- Newcomb, Martin,Park, Seung-Un,Kaplan, Jere,Marquardt, Donald J.
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p. 5651 - 5654
(2007/10/02)
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