Substituent and wavelength effects in the photochemistry of 5,6,7,8-tetrachloro-3a,9a-dihydro-2,3,9a-triarylfuro(2,3-b)(1,4)benzodioxin derivatives
作者:William M. Horspool、Abedawn I. Khalaf
DOI:10.1016/s0040-4039(00)94524-6
日期:1983.1
A study of the photoreactions of some triarylfurobenzodioxin derivatives has shown that the outcome is dependent on the type and position of the substitution on the 9a-aryl group. A wavelength dependence is also reported.
Reactions of<i>o</i>-quinones with α-methyl- (or methylene) substituted phosphorus ylides. Synthesis of benzo[<i>b</i>]furan derivatives
作者:Daman R. Gautam、Konstantinos E. Litinas、Konstantina C. Fylaktakidou、Demetrios N. Nicolaides
DOI:10.1002/jhet.5570400301
日期:2003.5
In Wittig reaction of some α-methyl- and α-methylene-substituted phosphorus ylides with o-quinones, benzo[b]furan derivatives were obtained via the cyclization of the o-vinylphenols, initially formed from the tautomerization of the corresponding intermediate o-quinone methides.
在一些α-甲基和α-亚甲基取代的磷酰化物与邻醌的维蒂希反应中,通过邻乙烯基苯酚的环化反应获得了苯并[ b ]呋喃衍生物,该衍生物最初是由相应中间体邻-的互变异构形成的。醌甲基化物。
Sequential One-Pot Carbene-Catalyzed Intramolecular Stetter Reaction and Acid-Mediated Condensation: Access to Heteroatom Analogues of π-Extended Polyaromatic Hydrocarbons
In this Letter, we disclose a simple and effective method to access a variety of phenanthro[9,10-b]furan and 1H-dibenzo[e,g]indole derivatives based on the design of a carbene-catalyzed intramolecular Stetter reaction followed by a Paal–Knorr reaction in one-pot. These compounds are a class of π-extended polycyclic aromatic hydrocarbon (PAH) derivatives containing an oxygen/nitrogen atom. The practical
在这封信中,我们基于卡宾催化的分子内 Stetter 反应的设计,公开了一种简单有效的方法来获得各种菲 [9,10- b ] 呋喃和 1 H-二苯并 [ e , g ]吲哚衍生物通过一锅中的 Paal-Knorr 反应。这些化合物是一类含有氧/氮原子的 π 延伸多环芳烃 (PAH) 衍生物。所开发转化的实际效用在克级及其合成后转化上得到证明。
Nicolaides, Demetrios N.; Litinas, Konstantinos E.; Lefkaditis, Demetrios A., Journal of the Chemical Society. Perkin transactions I, 1994, # 15, p. 2107 - 2112