Process for production of isochromans

Details Process for production of isochromans Process for production of isochromans

1975-06-26

1976-08-31

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260613D, C07D31102

Patent

active

039780902

ABSTRACT:
Process for producing isochromans having the structure: ##SPC1##
Wherein R.sub.1 and R.sub.2 are each (i) separately selected from the group consisting of hydrogen, lower alkoxyl, lower alkyl, and, (ii) taken together, selected from the group consisting of benzo, cyclopentano, cyclohexano, naphtho, monoalkyl cyclopentano, polyalkyl cyclopentano, monoalkyl cyclohexano and polyalkyl cyclohexano, and R.sub.3 and R.sub.4 are the same or different and are selected from the group consisting of hydrogen and lower alkyl comprising the steps of intimately admixing:

REFERENCES:
patent: 3360530 (1967-12-01), Heeringa et al.
patent: 3910964 (1975-10-01), Sanders et al.
Rieche et al., Ber., 89, 1254 (1956).
Sandler et al., Org. Functional Group Prep., vol. III, pp. 2-5, 59, 60 (1972).

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