Intermediates for the preparation of thienobenzopyrans and thiop

Details Intermediates for the preparation of thienobenzopyrans and thiop Intermediates for the preparation of thienobenzopyrans and thiop

1974-09-23

1976-02-24

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603322H, C07D33300

Patent

active

039404218

ABSTRACT:
Novel thienobenzopyrans and thiopyranobenzopyrans represented by the formula ##SPC1##
Wherein m and n are each 0, 1, 2 or 3 and m + n is 2 or 3; R.sub.1 is loweralkyl; R.sub.2 is alkyl or cycloalkylloweralkyl and R.sub.3 is hydrogen, loweralkyl, loweralkanoyl, carbamyl, N-loweralkylcarbamyl, N,N-diloweralkylcarbamyl, phosphonyl, hemisuccinate or an ester of another such acid, phosphate, dialkylaminoalkyl of the structure ##EQU1## or acid addition salt thereof, or dialkylaminoalkylanoyl of the structure ##EQU2## or acid addition salt thereof, wherein x is 1 through 6 and R.sub.4 and R.sub.5 are loweralkyl; the loweralkyl groups containing from 1 through 6 carbon atoms, the alkyl groups containing from 1 through 20 carbon atoms and the cycloalkyl groups containing from 3 through 8 ring carbon atoms. Novel intermediates for the synthesis of these compounds are also disclosed as well as methods for making the compounds.

REFERENCES:
patent: 2427579 (1947-09-01), Stahmann et al.
patent: 3639426 (1972-02-01), Razdan et al.

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