Enediynes undergo a Bergman cyclization reaction to form the labile 1, 4‐didehy‐
drobenzene (p‐benzyne) biradical. The energetics of this reaction and the related Schreiner …

A novel and convenient method has been developed for the facile synthesis of
functionalized succinimide derivatives via intramolecular Alder-ene reaction of 1, 6-enynes …

We describe the transition metal-free base-catalyzed Schmittel cycloisomerization reactions
of o-phenylene-linked bis (arenol) s to indeno [1, 2-c] chromene derivatives through …

Benzo [b] fluorenes were synthesized via CuI-catalyzed cascade reactions of 2-
alkynylbenzaldehyde N-tosylhydrazones and aromatic terminal alkynes in the presence of …

The first facile and efficient copper-catalyzed direct C–P cross-coupling of unprotected
propargylic alcohols with P (O) H compounds has been developed, providing a general, one …

Abstract A new [4+ 2] cycloaddition of allenyne‐alkyne is developed. The reaction is
believed to proceed with forming an α, 3‐dehydrotoluene intermediate. This species …

A facile and efficient synthesis of divergent benzo [b] fluorenones is described through the
use of dichlorobenzoquinone-promoted oxidative cycloaromatization reactions of acyclic 1 …

A new method for the synthesis of furan-/benzo-fused fluorenes through copper (I)-catalyzed
coupling of conjugated enynones or α-diazocarbonyl compounds with dialkynylbenzenes …

We report the Ni‐catalyzed cycloisomerization of 1, 5‐allenynes. Substrates containing
terminal alkynes afford cyclopentene derivatives, whereas internal alkynes lead to the …

An efficient protocol for the synthesis of benzo [b] fluorenes via base‐catalyzed cyclization of
1, 6‐diynyl carbonates, esters or ethers has been developed. The reaction likely proceeds …