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• 673-32-5 1-Phenylprop-1-yne 
• 34713-70-7 2-Phenylpropanal 

Relevant academic research and scientific papers

A novel rearrangement of arylvinylidenecyclopropanes to naphthalene derivatives catalyzed by Lewis acids or Br?nsted acids

Arylvinylidenecyclopropanes undergo a novel rearrangement in the presence of Lewis acids or Br?nsted acids to give the corresponding naphthalene derivatives in good to high yields under mild conditions. Georg Thieme Verlag Stuttgart.

Montmorillonite K-10-catalyzed intramolecular rearrangement of?vinylidenecyclopropanes

A series of naphthalene, indene, and 6aH-benzo[c]fluorene derivatives are synthesized by intramolecular rearrangement of vinylidenecyclopropanes using a heterogeneous solid acid catalyst, montmorillonite K-10, under mild reaction conditions in good to exc

HNTf2-catalyzed regioselective preparation of polysubstituted naphthalene derivatives through alkyne-aldehyde coupling

We report herein the preparation of polysubstituted naphthalene derivatives by the original Br?nsted-acid-catalyzed benzannulation reaction of phenylacetaldehydes with alkynes. This reaction, which was usually performed with Lewis acids under thermal activation, is efficiently promoted by 15 mol % of triflimide (HNTf2) at room temperature under metal-free and mild reaction conditions and leads with a perfect regioselectivity to a wide variety of diversely functionalized naphthalenes in 41-78% yield. A catalytic cycle is proposed together with some further applications of this catalytic system in the related benzannulation transformations of epoxide and acetal derivatives.

A new titanium tetrachloride mediated annulation of α -aryl-substituted carbonyl compounds with alkynes: A simple and highly efficient method for the regioselective synthesis of polysubstituted naphthalene derivatives

A new straightforward procedure has been developed for the synthesis of polysubstituted naphthalene derivatives. The reaction of α -aryl-substituted carbonyl compounds with terminal or internal alkynes in the presence of TiCl4 regioselectively generates substituted naphthalene derivatives in good to excellent yields.

A highly regioselective synthesis of polysubstituted naphthalene derivatives through gallium trichloride catalyzed alkyne-aldehyde coupling

A convenient synthesis of polysubstituted naphthalenes 3 involves the gallium trichloride catalyzed coupling of aromatic alkynes 1 and phenyl acetaldehydes or ketones 2 in dichloromethane. The reaction is highly regioselective.