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
作者:Derek H.R. Barton、David Crich、William B. Motherwell
DOI:10.1016/s0040-4020(01)97173-x
日期:1985.1
by tributylstannane in a radicalchainreaction to furnish nor-alkanes.1 In the absence of the stannane a smooth decarboxylatlive rearrangement occurs to give 2-substituted thiopyridines.1 The radicals present in this reaction provoke with -butylthiol an efficient radicalreaction with formation of nor-alkane and 2-pyridyl--butyl disulphide.1Similarly these carbon radicals can be captured by halogen
New and improved methods for the radical decarboxylation of acids
作者:Derek H. R. Barton、David Crich、William B. Motherwell
DOI:10.1039/c39830000939
日期:——
Carboxylic acid esters derived from N-hydroxypyridine-2-thione undergo efficient radical chain decarboxylation to the corresponding nor-alkane on treatment with either tri-n-butylstannane or t-butylmercaptan; in the absence of these hydrogen atom donors a smooth decarboxylative rearrangement giving noralkyl 2-pyridyl sulphides is observed.