Process for synthesizing certain N-benzoylamino indolines

Details Process for synthesizing certain N-benzoylamino indolines Process for synthesizing certain N-benzoylamino indolines

1984-04-27

1986-02-11

Lesmes, George F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20904

Patent

active

045700010

ABSTRACT:
Compounds of the structure ##STR1## wherein R is hydrogen, lower alkyl containing 1 to 5 carbon atoms, cycloalkyl containing 3 to 7 carbon atoms, phenyl or phenyl substituted with halogen, trifluoromethyl, or lower alkyl or lower alkoxy having 1 to 4 carbon atoms and R.sub.1 is hydrogen, lower alkyl having 1 to 4 carbon atoms, phenyl or phenyl lower alkyl wherein the lower alkyl has 1 to 4 carbon atoms, are formed by cyclizing a compound of the structure ##STR2## wherein R and R.sub.1 are as defined above, in the presence of an acid.

REFERENCES:
Hyre, J. E. et al., J. Amer. Chem. Soc., 80, 437-439, (1958).
W. Houlihan, Indoles (Part I), 472-473, John Wiley and Sons, NY (1972).
M. Schmid et al., Helv. Chim. Acta, 56, No. 3-4, 105-124 (1973).
A. Bader et al., J. Amer. Chem. Soc. 83, 3319-3323 (1961).

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