๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Intramolecular diels-alder reaction with furan-diene. An expeditious entry into a functionalized gibbane.

โœ Scribed by Werner M Grootaert; Pierre J De Clercg


Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
227 KB
Volume
23
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis


A short synthesis of a functionalized gibbane molecular Diels-Alder reaction of furan-diene mers, tentatively identified as 14a and 14b.

-zoic acid in 7 steps.


๐Ÿ“œ SIMILAR VOLUMES


Intramolecular diels-alder reaction with
โœ Luc A. Van Royen; Roelant Mijngheer; Pierre J. De Clercq ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 238 KB

Depending on the reaction conditions the intramolecular Diels-Alder reaction of furan-diene 14 yields predominantly either one of two adducts 16a and 16b , which possess the necessary --functionality for eventual transformation into corticosteroids. The dienophile was intro-

Intramolecular Diels-Alder Reaction with
โœ Luc A. van Royen; Roelant Mijngheer; Pierre J. De Clercq ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Wiley (John Wiley & Sons) โš– 1012 KB

A novel Approach f o r t h e s y n t h e s i s of t h e BCD-ring system i n s t e r o i d s i s d e s c r i b e d . The sequence centers about t h e i n t r a m o l e c u l a r Diels-Alder r e a c t i o n of f u r a n 1 5 , which, depending on t h e r e a c t i o n c o n d i t i o n s , l e a d s pr

Intramolecular diels-alder reaction with
โœ Luc A Van Royen; Roelant Mijngheer; Pierre J De Clercq ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 255 KB

A novel D + BCD + ABCD route to ll-keto steroids is reported involving a high yield stereoselective intramolecular Diels-Alder reaction of furan-diene 5a in water as a key-step. The dienophilic side chain is readily introduced starting from 2 via a sequence involving alkylation with ethyl 4-iodo-3-

A novel approach to periplanone-b involv
โœ Serge G. Cauwberghs; Pierre J. De Clercq ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 289 KB

The 6-step sequence to trienone 2, a known intermediate for the total synthesis of periplanone-B, involves the conversion of 2 into 5 using dilithiated propadiene, the IMDA of 4 to E-adducts 1 and 6, the conversion of 2 to diol S via a radical anion promoted cleavage of the oxygen bridge, and a in-s