Halo phthalimides of phenolic-substituted hydrazides

Details Halo phthalimides of phenolic-substituted hydrazides Halo phthalimides of phenolic-substituted hydrazides

1986-09-02

1987-08-18

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

548475, C07D20948, C08K 534

Patent

active

046877975

ABSTRACT:
##STR1## where X is 1, 2 or 3; Y is Cl or Br; R.sub.1 is tert-butyl (t-butyl) and R.sub.2 is H or lower alkyl of 1 to 4 carbons. The preferred group of compounds is where OH is at the 4 position, R.sub.1 is at the 3 position and R.sub.2 is at the 5 position of the phenyl ring. The most preferred compound is where X is 2, R.sub.1 and R.sub.2 are both t-butyl at the 3 and 5 positions of the phenyl ring and OH is at the 4 position of the phenyl ring and Y is Br. The compounds are useful as antioxidants and flame retardants.

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patent: 4015058 (1977-03-01), Schober
patent: 4045404 (1977-08-01), Stephen
patent: 4116930 (1978-09-01), Dexter et al.

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