Development of novel pesticides based on phytoalexins: Part 2. Quantitative structure-activity relationships of 2-heteroaryl-4-chromanone derivatives
作者:Guangfu Yang、Xiaohua Jiang、Huazheng Yang
DOI:10.1002/ps.584
日期:2002.10
structures of flavanone derivatives, one of the most important phytoalexins groups, have been modified via bioisosteric substitution and a series of 2-heteroaryl-4-chromanones were designed and synthesized. They showed good fungicidal activities against rice blast disease, Pyricularia grisea (Sacc). Their IC50 values were tested in vitro and the relationship between structure and fungicidal activity
Kapoor,V.M.; Mehta,A.M., Journal of the Chemical Society. Perkin transactions I, 1973, p. 2420 - 2424
作者:Kapoor,V.M.、Mehta,A.M.
DOI:——
日期:——
Courant; v. Kostanecki, Chemische Berichte, 1906, vol. 39, p. 4033
作者:Courant、v. Kostanecki
DOI:——
日期:——
Hemasri; Jaya Prakash Rao; Rajanna, Journal of the Indian Chemical Society, 2013, vol. 90, # 8, p. 1115 - 1125
作者:Hemasri、Jaya Prakash Rao、Rajanna、Saiprakash
DOI:——
日期:——
Thallium(
<scp>III</scp>
)
<i>p</i>
‐tosylate‐mediated oxidative [1,2] rearrangement of
<scp>2‐naphthyl</scp>
and
<scp>2‐heteroarylchromanones</scp>
作者:Chidvilas Kurapati、Murugan Muthukrishnan、Om V. Singh、Rambabu Gundla
DOI:10.1002/jhet.4377
日期:2022.1
A practical and effective approach towards the synthesis of 3-heteroaryl-4H-chromen-4-ones by the oxidative [1,2] rearrangement of the respective 2-heteroaryl chroman-4-ones using thallium(III) p-tosylate is presented. The oxidative rearrangement of α- and β-naphthyl and thiophene substituents behaves like aryl groups; However, pyridyl substituents gave only dehydrogenated products.
通过使用对甲苯磺酸铊 (III)对各自的 2-杂芳基 chroman-4-ones 进行氧化 [1,2] 重排来合成 3-heteroaryl-4 H -chromen-4-ones的实用且有效的方法是提出了。α-和β-萘基和噻吩取代基的氧化重排表现得像芳基;然而,吡啶基取代基仅产生脱氢产物。