Batch and Flow Synthesis of Pyrrolo[1,2-a]-quinolines via an Allene-Based Reaction Cascade.
نویسندگان
چکیده
An efficient reaction cascade delivering a series of pyrrolo[1,2-a]quinolines bearing phosphonate or phosphine oxide moieties is presented. This sequence exploits the in situ transformation of propargylic alcohols into transient allenes by means of a strategic [2,3]-sigmatropic rearrangement followed by trapping of the resulting allenes by an adjacent pyrrole ring. Furthermore, the initial small scale batch process was successfully translated into a continuous flow process allowing efficient preparation of selected pyrrolo[1,2-a]quinolines on multigram scale without any safety concerns due to the reaction's inherent exothermic profile.
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ورودعنوان ژورنال:
- The Journal of organic chemistry
دوره 80 21 شماره
صفحات -
تاریخ انتشار 2015