A method for the synthesis of 2-arylquinazolines is described which involves Chan–Evans–Lam coupling of 2-formylphenylboronic acids with amidines. The reaction is performed at mild conditions compatible with the range of functional groups and is cost-efficient, provided by usage of inexpensive catalyst and reagents. The synthesis method of 2-arylquinazolines presented is of with scope in both 2-formylphenylboronic
The present disclosure is drawn to boron-containing compounds, compositions containing a pesticidal effective amount of that compound or compounds dissolved or dispersed in a carrier medium. The compositions are useful in a method for reducing, ameliorating, or controlling an infestation by a pest, particularly a fungus, by administering a contemplated composition to a plant in need.
CN116253627
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A tautomeric equilibrium between functionalized 2-formylphenylboronic acids and corresponding 1,3-dihydro-1,3-dihydroxybenzo[c][2,1]oxaboroles
Functionalized 2-formylphenylboronic acids undergo an unprecedented tautomeric rearrangement in solution to form corresponding 1,3-dihydro-1,3-dihydroxybenzo[c][2,1]oxaboroles. X-Ray analyses of selected examples revealed diverse solid-state molecular structures from a planar open form with a hydrogen-bonded carbonyl group (X = 3-F) through a twisted conformer showing a weak carbonyl–boron interaction
功能化的2-甲酰基苯基硼酸在溶液中经历前所未有的互变异构重排,以形成相应的1,3-二氢-1,3-二羟基苯并[ c ] [2,1]氧杂硼酸。对选定示例的X射线分析显示,固态分子结构从带有氢键合羰基的平面开放形式(X = 3-F)到扭曲的构象异构体,表现出弱的羰基-硼相互作用(X = 3,5)。 -Br 2)生成环状氧杂硼酸酯衍生物(X = 3-Br)。可变温度1 H NMR光谱用于确定平衡常数以及焓和熵互变异构 在混合溶剂中 [D 6 ]丙酮–d 2 ö(95:5)。还已经通过DFT(B3LYP)和MP2方法对这一过程进行了计算。
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申请人:LG CHEM, LTD. 주식회사 엘지화학(120010134563) Corp. No ▼ 110111-2207995BRN ▼107-81-98139