Process for preparing polyalkyl-2-alkoxy-7-hydroxychroman deriva

Details Process for preparing polyalkyl-2-alkoxy-7-hydroxychroman deriva Process for preparing polyalkyl-2-alkoxy-7-hydroxychroman deriva

1990-07-03

1991-12-10

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31116

Patent

active

050720074

ABSTRACT:
Process for preparing polyalkyl-2-alkoxy-7-hydroxychroman derivative of the general formula (V): ##STR1## wherein R.sup.1 denotes lower primary alkyl, R.sup.2 denotes hydrogen or lower primary alkyl and R.sup.3 denotes loweralkyl, by reacting resorcin with either an aliphatic ketone of the general formula (I): ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, and an alcohol of the formula (II):

REFERENCES:
patent: 4838924 (1989-06-01), Takematsu et al.

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