Di- and triphenylated cation radical polymers and their use as D

Details Di- and triphenylated cation radical polymers and their use as D Di- and triphenylated cation radical polymers and their use as D

1981-11-02

1985-03-05

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253336, 525340, 5253591, 525379, C08F 800

Patent

active

045031959

ABSTRACT:
A regenerative catalyst composition is provided comprising polymer supported covalently bound di- or triphenylated cation radical salts, wherein the cation radical is a Group VA element and the complementing anion is a Lewis acid anion or other anion, such as perhalo acid or acid metal halide. The phenylated cation radical salts, either polymer supported or unsupported, are useful catalytic agents facilitating the versatile Diels-Alder organic synthetic reactions to form cyclohexene compounds including the more intricate terpenoids, steroids, alkaloids, and prostaglandinoids.

REFERENCES:
patent: 3737474 (1973-06-01), Dunn
patent: 3793354 (1974-02-01), Schwager et al.
patent: 3960962 (1976-06-01), Shubkin
patent: 4098727 (1978-07-01), Haag et al.
patent: 4137386 (1979-01-01), Smith
patent: 4179403 (1979-12-01), Kim et al.
patent: 4198353 (1980-04-01), Carlock
patent: 4228035 (1980-10-01), Frazier
patent: 4238358 (1980-12-01), Holy et al.
Rembaum et al., J. Polym-Sci., (Polymer Symposia), 4C:529-549, (1963).
Rembaum et al., J. Macromol. Chem., 1: 673-691, (1966).
Stewart et al., J. Macromol. Sci.-Chem., 1A: 1143-1153, (1967).
Schutte et al., J. Am. Chem. Soc., 91: 3715-3720, (1969).
Penner et al., J. Am. Chem. Soc., 92: 2861-2867, (1970).
Avny et al., Eur. Polym. Jr., 7: 1037-1046, (1971).
Ledwith, A., Accounts Chem. Research, 5: 133-139, (1972).
Barton et al., J. Chem. Soc. Perkin Trans. I., 2055-2065, (1975).
Lang et al., J. Am. Chem. Soc., 100: 5248-5249, (1978).
Bellville et al., J. Am. Chem. Soc., 103: 718-720, (1981).

Affiliated with

Also associated with

Rating

Di- and triphenylated cation radical polymers and their use as D does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Di- and triphenylated cation radical polymers and their use as D, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Di- and triphenylated cation radical polymers and their use as D will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1735104