Synthesis of Two Diastereomeric C1-C7 Acid Fragments of Amphidinolactone B UsingB-Alkyl Suzuki-Miyaura Cross-Coupling as the Modular Assembly Step

Recent Advances in Metal-Catalyzed Alkyl–Boron (C(sp3)–C(sp2)) Suzuki-Miyaura Cross-Couplings

Boron chemistry has evolved to become one of the most diverse and applied fields in organic synthesis and catalysis. Various valuable reactions such as hydroborylations and Suzuki–Miyaura cross-couplings (SMCs) are now considered as indispensable methods in the synthetic toolbox of researchers in academia and industry. The development of novel sterically- and electronically-demanding C(sp3)–Boron reagents and their subsequent metal-catalyzed cross-couplings attracts strong attention and serves in turn to expedite the wheel of innovative applications of otherwise challenging organic adducts in different fields. This review describes the significant progress in the utilization of classical and novel C(sp3)–B reagents (9-BBN and 9-MeO-9-BBN, trifluoroboronates, alkylboranes, alkylboronic acids, MIDA, etc.) as coupling partners in challenging metal-catalyzed C(sp3)–C(sp2) cross-coupling reactions, such as B-alkyl SMCs after 2001.

Synthesis of C14–C21 acid fragments of cytochalasin Z8via anti-selective aldol condensation and B-alkyl Suzuki–Miyaura cross-coupling

An efficient synthesis of the C14–C21 acid fragment of cytochalasin Z₈ was accomplished in 10 steps with 14% overall yield.