作者:James M. Lovell、John A. Joule
DOI:10.1039/p19960002391
日期:——
Lithiation of thianthrene at C-1 allows the synthesis of various 1-substituted thianthrenes for example thianthren-1-ylboronic acid and 1-tributylstannylthianthrene, which undergo palladium-catalysed couplings with aryl halides. 2-Bromothianthrene provides an entry to 2-substituted thianthrenes via lithium–halogen exchange then reaction of 2-lithiothianthrene with electrophiles including formation of the 2-boronic acid and 2-tributylstannylthianthrene which were coupled to aryl halides.
噻蒽 C-1 的锂化反应可以合成各种 1-取代的噻蒽,例如噻蒽-1-基硼酸和 1-三丁基锡噻蒽,它们与芳基卤化物发生钯催化偶联反应。通过锂-卤素交换,2-溴噻蒽进入 2-取代噻蒽,然后 2-硫代噻蒽与亲电物反应,包括形成 2-硼酸和 2-三丁基锡噻蒽,并与芳基卤化物偶联。