Scaling Out by Microwave-Assisted, Continuous Flow Organic Synthesis (MACOS): Multi-Gram Synthesis of Bromo- and Fluoro-benzofused Sultams Benzthiaoxazepine-1,1-dioxides
作者:Farman Ullah、Thiwanka Samarakoon、Alan Rolfe、Ryan D. Kurtz、Paul R. Hanson、Michael G. Organ
DOI:10.1002/chem.201001651
日期:——
Go with the flow! Using a combination of continuous‐flow techniques and microwave irradiation, a 19‐member collection of 5–10 gram quantities of benzthiaoxazepine‐1,1‐dioxides has been produced (see scheme). The elimination of intermediate‐ and large‐scale process optimization by invoking the concept of scale‐out (rather than scale up) has significantly reduced the time necessary to prepare these compounds
Synthesis of Amino-Benzothiaoxazepine-1,1-dioxides Utilizing a Microwave-Assisted, S<sub>N</sub>Ar Protocol
作者:Alan Rolfe、Farman Ullah、Thiwanka B. Samarakoon、Ryan D. Kurtz、Patrick Porubsky、Benjamin Neuenswander、Gerald H. Lushington、Conrad Santini、Michael G. Organ、Paul R. Hanson
DOI:10.1021/co200076j
日期:2011.11.14
The development of a microwave-assisted, intermolecular SNAr protocol for the synthesis of a 126-member benzothiaoxazepine-1,1-dioxide library is reported. Diversification of 12 benzothiaoxazepine-1,1-dioxides was achieved in rapid fashion utilizing a variety of 2 degrees amines; and amino alcohols to generate an 80-member library. A second 48-member library was subsequently generated via a two-step alkylation, intermolecular SNAr diversification protocol.