Metal-free synthesis of indanes by iodine(III)-mediated ring contraction of 1, 2-dihydronaphthalenes
摘要:
A metal-free protocol was developed to synthesize indanes by ring contraction of 1,2-dihydronaphthalenes promoted by PhI(OH) OTs (HTIB or Koser's reagent). This oxidative rearrangement can be performed in several solvents (MeOH, CH3CN, 2,2,2-trifluoroethanol (TFE), 1,1,1,3,3,3-hexafluoroisopropanol (HFIP), and a 1: 4 mixture of TFE: CH2Cl2) under mild conditions. The ring contraction diastereoselectively gives functionalized trans-1,3-disubstituted indanes, which are difficult to obtain in synthetic organic chemistry.
The present invention relates to substituted imidazoly 1-5,6- dihydrobenzo[n]isoquinoline compounds and methods of synthesizing these compounds. The present invention also relates to pharmaceutical compositions containing substituted imidazolyl-5,6-dihydrobenzo[n]isoquinoline compounds and methods of treating cell proliferative disorders, such as cancer, by administering these compounds and pharmaceutical compositions to subjects in need thereof.
The present invention relates to substituted imidazolyl-5,6-dihydrobenzo[n]isoquinoline compounds and methods of synthesizing these compounds. The present invention also relates to pharmaceutical compositions containing substituted imidazolyl-5,6-dihydrobenzo[n]isoquinoline compounds and methods of treating cell proliferative disorders, such as cancer, by administering these compounds and pharmaceutical compositions to subjects in need thereof.
The present invention relates to substituted 5,6-dihydro-6-phenylbenzo[f]isoquinolin-2-amine compounds and methods of synthesizing these compounds. The present invention also relates to pharmaceutical compositions containing substituted 5,6-dihydro-6-phenylbenzo[f]isoquinolin-2-amine compounds and methods of treating cell proliferative disorders, such as cancer, by administering these compounds and pharmaceutical compositions to subjects in need thereof.
The application describes new compounds of the formula
wherein
R1 is hydrogen, C1-C7 alkyl, or C4-C8 cycloalkylmethyl;
R2 is a single or multiple substitution of hydrogen, hydroxyl, C1-C7 alkoxy, or C1-C7 alkyl; and
R3 is a single or multiple substitution of hydrogen, hydroxyl, halogen, C1-C7 alkoxy, phenoxy, C1-C7 alkyl, or trifluoromethyl;
all stereoisomeric forms and mixtures thereof, and pharmaceutically acceptable addition salts thereof.
Application of (2-cyanoaryl)arylacetonitriles in cyclization and annulation reactions. Preparation of 3-arylindans, 4-aryl-3,4-dihydronaphthalenes, 4-arylisoquinolines, 1-aminonaphthalenes, and heterocyclic analogues
作者:Michael Bech Sommer、Mikael Begtrup、Klaus Peter Boegesoe