- Benzylation of arenes with benzyl ethers promoted by the in situ prepared superacid BF3-H2O
-
An efficient and environmentally friendly benzylation of arenes with benzyl ethers as benzyl donors using BF3-Et2O to generate in situ the superacid BF3-H2O as an efficient promotor has been described. A wide variety of functional groups have been investigated and found to be compatible to give the desired diarylmethanes in yields of up to 99%. The crucial role of the moisture content in this transformation has been demonstrated by detailed investigations. This journal is the Partner Organisations 2014.
- Li, Yu,Xiong, Yan,Li, Xueming,Ling, Xuege,Huang, Ruofeng,Zhang, Xiaohui,Yang, Jianchun
-
supporting information
p. 2976 - 2981
(2014/06/10)
-
- New observations on deprotection of O-benzyl derivatives with Pd/C-cyclohexene
-
Palladium catalysed transfer hydrogenation using cyclohexene as the donor is found to deprotect readily alcohol benzyl ethers and aliphatic benzyl esters. The phenol benzyl ethers and benzyl benzoates are stable under these conditions.
- Sansanwal,Krishnamurty
-
p. 1901 - 1906
(2007/10/02)
-
- ACTIVATION BY PdCl2(PhCN)2 OF THE ALCOHOLIC BENZYLIC FUNCTION TO NUCLEOPHILIC ALIPHATIC AS WELL AS ELECTROPHILIC AROMATIC SUBSTITUTIONS. A ONE STEP SYNTHESIS OF A CHROMANE STRUCTURE
-
Benzylic alcohols react, by activation with PdCl2(PhCN)2, under mild conditions with alkanols and enols to give the corresponding benzylic ethers, and, under the same conditions, with aromatic substrates to give the corresponding phenylmethanes.As an example, a one-step synthesis of a chromane structure is reported.
- Mincione, Enrico,Bovicelli, Paolo
-
p. 437 - 440
(2007/10/02)
-