Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1975-05-07
1977-12-13
Phillips, Delbert R.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
204 1R, 2041601, 260 8, 260 78A, 2601125R, 526 52, 260 6, 260 7, C08L 8100
Patent
active
040627462
ABSTRACT:
The invention is addressed to the preparation of 3-nitro-4-bromomethyl benzoic acid, as a new compound from which 3-nitro-4-bromomethyl benzoyl amide polystyrene resin can be prepared for solid synthesis of protected peptide acids and amides and separation thereof without cleavage of acid labile protecting groups or decomposition of aromatic acid groups and from which purified polypeptides can be formed.
REFERENCES:
patent: 3573253 (1971-03-01), Gray
patent: 3645996 (1972-02-01), Southard
patent: 3700609 (1972-10-01), Tregear et al.
patent: 3775378 (1973-11-01), Dahimans et al.
patent: 3784523 (1974-01-01), Loffet
patent: 3814732 (1974-06-01), Wang
Rich et al., Chem. Comm., 1973, 610-611.
Barltrop et al., Chem. Comm., 1966, 822-823.
Gurwara Sweet K.
Rich Daniel H.
Phillips Delbert R.
Wisconsin Alumni Research Foundation
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