In:
Chemische Berichte, Wiley, Vol. 119, No. 11 ( 1986-11), p. 3442-3472
Abstract:
Studies towards Functionalized/Annulated acs ‐Tetracyclo[7.2.1.0 4,11 .0 6,10 ]dodeca‐2,7‐diene Skeletons — X‐ray Structural Analyses of a „face‐to‐face”︁ Dibenzo Compound and a Tetraoxadihydropagodane Hexacyclo[5.4.1.0 2,6 .0 3,10 .0 4,8 .0 9,12 ]dodecane‐5,11‐dione ( 15 ), which is efficiently available from 7‐acetoxynorbornadiene ( 1 ) and tetrachlorocyclopentadienone dimethyl acetal, is the key substance for the synthesis of hexacyclo[6.5.1.0 2,7 .0 3,11 .0 4,9 .0 10,14 ]tetradeca‐5,12‐diene ( 24 ) as well as of various 5,12‐functionalized acs ‐tetracyclo[7.2.1.0 4,11 .0 6,10 ]dodeca‐2,7‐dienes ( 32 , 36 , 40 , 41 ), of some related 2,3‐benzo‐ ( 84 , 85 ) and „face‐to‐face”︁ 2,3:7,8‐dibenzo compounds ( 54–58 ), which are sought as photosubstrates. The two isomeric „face‐to‐face”︁ dipyridazines 65/68 are obtained starting from a pagodane intermediate ( 60 ) via the tetraformyl derivative 63 . X‐ray structural analyses together with MM2 calculations for the dibenzo compound 54 and for the tetraoxadihydropagodane 64 (a [4]peristylane) derived from 63 , provide detailed structural informations.
Type of Medium:
Online Resource
ISSN:
0009-2940
DOI:
10.1002/cber.v119:11
DOI:
10.1002/cber.19861191121
Language:
English
Publisher:
Wiley
Publication Date:
1986
detail.hit.zdb_id:
779-1