Integrated chemical process for green chemistry. One-pot synthesis of 3-substituted 5-(β-sulfonylvinyl)indoles by in situ generation of toxic vinyl sulfone
Abstract
Integrated chemical processes where multi-step reactions are consolidated in one pot are effective for realizing a green chemical process. In situ generation followed by consumption of toxic intermediates which are formed in the process enables their complete isolation from the environment. This is so for a vinyl sulfone intermediate in the synthesis of 3-substituted 5-(β-sulfonylvinyl)indoles. The validity of this idea is further confirmed by successful one-pot operations on an automated synthesizer.