Ein neuer Zugang zu 2,6,6‐Trimethylcyclohexa‐2,4‐dienon aus 4‐Oxoisophoron | Zendy

Soukup Milan | Zendy; Lukáč Teodor | Zendy; Zell Reinhard | Zendy; Roessler Felix | Zendy; Steiner Kurt | Zendy; Widmer Erich | Zendy

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Ein neuer Zugang zu 2,6,6‐Trimethylcyclohexa‐2,4‐dienon aus 4‐Oxoisophoron

Author(s) -

Soukup Milan,

Lukáč Teodor,

Zell Reinhard,

Roessler Felix,

Steiner Kurt,

Widmer Erich

Publication year - 1989

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19890720223

Subject(s) - chemistry , yield (engineering) , catalysis , stereochemistry , organic chemistry , materials science , metallurgy

A New Access to 2,6,6‐Trimethylcyclohexa‐2,4‐dienone from 4‐Oxoisophorone 2,6,6‐Trimethylcyclohexa‐2,4‐dienone ( 1 ), a versatile starting material for the preparation of some carotenoids and several natural products, was efficiently (73% yield) prepared from oxoisophorone 3 . After conversion of 3 to the alcohol 4 or the acetate 5 , H 2 O was eliminated ( 4→1 ) under acidic distillative conditions, whereas AcOH could be eliminated ( 5→l ) under Pd(O) catalysis.

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