𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A catalytic conversion of 1-methoxycyclohexa-1,4-dienes into 1-methoxycyclohexa-1,3-dienes

✍ Scribed by A.J. Birch; K.P. Dastur

Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
89 KB
Volume
13
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

The first equilibration of l-methoxycyclohexa-1.4-dienes, readily available from metalassmnia reduction of anisoles.

1 with the more stable cyclohexa-1,3-dienes, was with potassamide in -nia.l This, and other basic reagents in DHSO. have experimental disadvantages.

πŸ“œ SIMILAR VOLUMES

Transition metal complexes in organic sy
Transition metal complexes in organic synthesis, part 50. Asymmetric catalytic complexation of 1-methoxycyclohexa-1,3-diene by the tricarbonyliron fragment using amino acid-derived 1-azabuta-1,3-dienes
✍ Hans-Joachim KnΓΆlker; Daniela Herzberg πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 145 KB

L-Amino acid esters as chiral auxiliaries in the asymmetric complexation of 1-methoxycyclohexa-l,3-diene with pentacarbonyliron afford the R-enantiomer of the corresponding planar chiral tricarbonylimn complex in up to 24% ee.

The clemmensen reduction of enol ethers:
The clemmensen reduction of enol ethers: cyclopropyl ethers from mono- and di-methoxycyclohexa-1,4-dienes
✍ IrΓ¨ne Elphimoff-Felkin; Pierre Sarda πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 French βš– 213 KB

Clemmensen reduction (zinc and hydrogen chloride in dry diethyl ether) of 1-methoxy-and l,S-dimethoxy-cyclohexa-1,4-diene affords the cyclopropyl ethers, l-methoxy-and 1,5-dimethoxy-bicycloI3.l.Olhexane; in the presence of acetic anhydride, reduction of 6-acetyl-l-methoxy-6-methyl-cyclohexa-1,4-dien

Organometallics in organic synthesis:tri
Organometallics in organic synthesis:tricarbonyl-(3-methoxycyclohexa-2,4-dien-1-yl)-iron(1+). A synthetic equivalent of the C-5 cation of cyclohexenone.
✍ Lawrence F. Kelly; Peter Dahler; Acharan S. Narula; Arthur J. Birch πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 French βš– 208 KB

## Swrnnary: ~icarbonyZ-I3-methoxycyctohe~-2,4-dien-l-yl)-iro~l~l+~ PFcfl-) 2 reacts with a variety of nucleophiles to give 5-substi-&ted cyclohex-2-enones. 2 is sham to be a useful precursor for a convergent synthesis of 5-substituted cyclohcx-2-enones and to be synthetically equivalent to the 5

Regiospecific addition of methoxycyclohe
Regiospecific addition of methoxycyclohexa-1,3-dienes to 2-methoxy-1,4-benzoquinone. Application to the synthesis of 3-methoxy-7-methyljuglone and Ξ±-caryopterone.
✍ Robin G.F. Giles; Gregory H.P. Roos πŸ“‚ Article πŸ“… 1975 πŸ› Elsevier Science 🌐 French βš– 106 KB

Nucleophilic attack on 1,4-benzoquinone leads in general to 2,5-disubstituted 1,4benzoquinones'. For example, the action of methanol on benzoquinone, in the presence of zinc n