مشخصات پژوهش

صفحه نخست /Synthesis of novel ...
عنوان Synthesis of novel benzochromenes using triarylphosphines, alkyl X-phenylpropiolates and 2-hydroxy-1
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها 2-hydroxy-1-naphthaldehyde, Wittig reaction, alkyl X-phenylpropiolates, triphenylphosphine, bis(4-methoxyphenyl)phenylphosphine
چکیده The reactions of a series of alkyl X-phenylpropiolates with 2-hydroxy-1-naphthaldehyde and triphenylphosphine led to benzochromenes in moderate yields. When the reactions were performed in the presence of bis(4-methoxyphenyl)phenylphosphine instead of triphenylphosphine, the rate and yields of the reactions increased. Reaction yields were enhanced for alkyl X-phenylpropiolates when X was an electron-deficient substituent such as CF3 or Cl, thus showing that the electronic effect of substituents plays an important role in the reactions.
پژوهشگران حمیدرضا غلامی (نفر اول)، سکینه اصغری قراخیلی (نفر دوم)