Synthesis of N-Sulfonyl Arylaldimines Developed by Retesting an Old Process
By simply heating the mixture of an arylaldehyde and a sulfonylisocyanate in a solvent or in neat form under catalyst- and additive-free conditions, the desired N-sulfonylimine was produced with the release of carbon dioxide. The method is characterized b
Lewis acid-catalyzed tandem synthesis of 9-sulfonylamino- and 9-arylfluorenes
A Lewis acid-catalyzed three-step tandem synthesis of 9-arylfluorene was developed by simply heating a mixture of 2-formyl biphenyl, TsNCO and an arene. In the absence of arene, a two-step tandem synthesis of 9-sulfonylaminofluorene was achieved. These ad
Facile Cu(OTf)2-catalyzed preparation of 9-tosylaminofluorene derivatives from o-arylated N-tosylbenzaldimines
The 9-tosylaminofluorene derivatives were synthesized conveniently by Cu(OTf)2-catalyzed aza-Friedel-Crafts reaction of o-arylated N-tosylbenzaldimines in high yields. This is an efficient, atom-economic, and green method.
Yu, Xufen,Lu, Xiyan
p. 2076 - 2079
(2011/05/09)
Efficient synthesis of 9-tosylaminofluorene derivatives by boron trifluoride etherate-catalyzed aza-friedel-crafts reaction of in situ generated N-tosylbenzaldimines
An efficient and expeditious boron trifluoride etherate (BF 3·Et2O) catalyzed one-pot reaction for the synthesis of N-tosyl-9-aminofluorenes and anthracene derivatives from in situ generated N-tosylbenzaldimines via an aza-Friedal-Crafts reaction has been developed. The catalytic reaction shows high substrate tolerance with excellent yields.
Yu, Xufen,Lu, Xiyan
supporting information; experimental part
p. 569 - 574
(2011/04/23)
More Articles about upstream products of 1292302-62-5