Process for the preparation of 3,5-di-tert-butyl-4-hydroxy metho

Details Process for the preparation of 3,5-di-tert-butyl-4-hydroxy metho Process for the preparation of 3,5-di-tert-butyl-4-hydroxy metho

1993-12-21

1994-11-15

Siegel, Alan

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

Organic compounds

Oxygen containing

C07C 4302

Patent

active

053649745

ABSTRACT:
Claimed is a process for the preparing 3,5-di-tert-butyl-4-hydroxy-methoxybenzyl alcohol which is an effective stabilizer of polymer materials and a starting compound in synthesis of high- effective polynuclear phenolic stabilizers.
It is an object of this invention to provide a simplification of the process and improve a quality of the target product.
This object is attained by using N,N,N',N'-tetra-methyl-methylene-bis-amine as a catalyst with the molar ratio of 2,6-DTBP to formaldehyde to methanol to bis-amine as of 1.0:1.0-1.5:10-15: 0.01-0.50 and conducting a process at 60.degree.-100.degree. C.

REFERENCES:
patent: 2841624 (1958-07-01), Norton et al.
patent: 3006969 (1961-10-01), Koetitz
patent: 4754077 (1988-06-01), Mina
patent: 4952736 (1990-08-01), Iwahara
Koetitz, K. F. "Alkylated Phenols" Abstract Journal of Chemistry, 1963, Oct. 31, 1961.

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