Alkenes and their derivatives are featured widely in a variety of natural products,
pharmaceuticals, and advanced materials. Significant efforts have been made toward the …

Transition metal-catalyzed cross-coupling of sp2 C–H bonds with diazo compounds via
carbene migratory insertion represents an efficient strategy for the construction of C–C and …

Presented herein is a condition-controlled selective synthesis of pyrazolonyl
spirodihydroquinolines or pyrazolonyl spiroindolines through formal [5+ 1] or [4+ 1] …

In spite of the prevalence of fused cyclobutane skeletons in natural products and
pharmaceuticals, synthetic strategies for their assembly from simple starting materials still …

We report a Rh (III)-catalyzed ortho-C–H bond functionalization of nitroarenes with 1, 2-
diarylalkynes and carboxylic anhydrides. The reaction unpredictably affords 3, 3 …

The involvement of planar carbocation intermediates is generally considered undesirable in
asymmetric catalysis due to the difficulty in gaining facial control and their intrinsic stability …

A DMAP-catalyzed sequential benzannulation and lactonization strategy in which δ-acetoxy
allenoate functions as a 5C-synthon in its reaction with cyclic sulfamidate imines is reported …

We disclose herein a Rh (III)-catalyzed migratory three-point double annulation of o-alkenyl
phenols with propargyl alcohols for de novo construction of naphtho furan derivatives in a …

DBU-catalyzed spiro-annulation and concomitant ring expansion/domino reaction of δ-
acetoxy allenoates with cycl-2-ene-N-sulfonyl hydrazides afford ring-expanded (5→ 6, 6→ 7 …

Recent years have seen the emergence of transition metal catalyzed C–H activation as a
powerful synthetic tool in organic chemistry. Allenes have fascinated synthetic chemists due …