Application of the thioimidate cyclopropane rearrangement to heterocyclic synthesis. Preparation of diaryl pyrrolines
作者:Ronald K. Chang、Robert M. DiPardo、Scott D. Kuduk
DOI:10.1016/j.tetlet.2005.10.009
日期:2005.12
Substituent effects on the thioimidate cyclopropane rearrangement and factors affecting regioselectivity are reported. Palladium-mediated coupling of the pyrrolothiomethylimidate rearrangement products with Grignard reagents provides diaryl pyrrolines in good yields.
Synthesis of 2,3-diaminodihydropyrroles via thioimidate cyclopropane rearrangement
作者:Scott D Kuduk、Christina Ng、Ronald K Chang、Mark G Bock
DOI:10.1016/s0040-4039(02)02847-2
日期:2003.2
The synthesis of novel 2,3-diaminodihydropyrroles is reported. The key step is a thiomethylimidate cyclopropanerearrangement to afford a pyrrolothiomethylimidate intermediate. Reaction of this intermediate with amines produced the title compounds in good yields. The scope and mechanism of the reaction is discussed.