Synthesis of 4b,5,10a,11-tetrahydroindeno[1,2-b]quinolin-10-ones from Baylis–Hillman adducts
摘要:
We developed an efficient synthetic method for indenoquinoline skeletons from Baylis-Hillman adducts. 4b,5,10a,11-Tetrahydroindeno[1,2-b]quinolin-10-ones and 7H-indeno[2,1-c]quinolines were prepared from Baylis-Hillman adducts in polyphosphoric acid. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis of 4b,5,10a,11-tetrahydroindeno[1,2-b]quinolin-10-ones from Baylis–Hillman adducts
摘要:
We developed an efficient synthetic method for indenoquinoline skeletons from Baylis-Hillman adducts. 4b,5,10a,11-Tetrahydroindeno[1,2-b]quinolin-10-ones and 7H-indeno[2,1-c]quinolines were prepared from Baylis-Hillman adducts in polyphosphoric acid. (C) 2004 Elsevier Ltd. All rights reserved.
Palladium(0)-Catalyzed Regioselective Synthesis of α-Dehydro-β-amino Esters from Amines and Allyl Acetates: Synthesis of a α-Dehydro-β-amino Acid Derived Cyclic Peptide as a Constrained β-Turn Mimic
作者:S. Rajesh、Biswadip Banerji、Javed Iqbal
DOI:10.1021/jo010981d
日期:2002.11.1
Acetates derived from the adducts of the Baylis-Hillman reaction can be reacted in a regioselective manner with amines in the presence of palladium(0) catalyst to afford alpha-dehydro-beta-amino esters (2 and 3) in good yields. The regioselectivity of the reaction can be controlled by temperature and reaction medium leading to the synthesis of regioisomers 2 or 3. The alpha-dehydro-beta-amino acid