|
Title
|
Convenient synthesis of naphthopyrans using montmorillonite K-10 as heterogeneous catalyst
|
|
Type
|
JournalPaper
|
|
Keywords
|
Naphthopyran; propargylic alcohols; naphthol; montmorillonite K-10.
|
|
Abstract
|
A simple and mild procedure for the synthesis of different naphthopyrans providing high yields in a short reaction time was reported. The reaction of propargylic alcohols with α- or β-naphthol and dihydroxy naphthalenes in the presence of montmorillonite K-10 was studied. This reaction afforded high yields of the corresponding naphthopyrans. In addition, a number of new phenylene and biphenylen-linked bisnaphthopyrans were synthesized providing excellent yields via the one-pot reaction of bis-propargyl alcohols with β-naphthol.
|
|
Researchers
|
Zahar Lasemi (Fifth Researcher), Mohammad Reza Naimi-Jamal (Fourth Researcher), Mohammad Javad Ardestanian (Third Researcher), Maryam Mohadjerani (Second Researcher), Rahman Hosseinzadeh (First Researcher)
|