Structure elucidation of some ent-clerodane diterpenes from Dodonaea boroniaefolia and Cyanostegia augustifolia

1973 ◽  
Vol 26 (10) ◽  
pp. 2199 ◽  
Author(s):  
PR Jefferies ◽  
JR Knox ◽  
B Scaf
Keyword(s):  
Hydroxy Acid ◽  
Ring Opening ◽  
Structure Elucidation ◽  
Keto Acid ◽  
Clerodane Diterpenes

Two diterpene alcohols (1) and (2) and a hydroxy acid isolated as the ester (7) have been obtained from D. boroniaefolia. Their structures have been established by correlation with the acid (10) by way of the cyclopropane intermediate (17) and its product of ring opening (22). The diacid (24) from Cyanostegia angustifolia has also been correlated with (22) through the diol (29) and keto acid (31).

Regioselective ring opening of thiomalic acid anhydrides by carbon nucleophiles. Synthesis and X-ray structure elucidation of novel thiophenone derivatives

Tetrahedron ◽  
2009 ◽  
Vol 65 (18) ◽  
pp. 3711-3716 ◽  
Author(s):  
Stefanos Kikionis ◽  
Vickie McKee ◽  
John Markopoulos ◽  
Olga Igglessi-Markopoulou
Keyword(s):  
Ring Opening ◽  
Structure Elucidation ◽  
X Ray ◽  
Carbon Nucleophiles ◽  
Acid Anhydrides

Structure Elucidation, Regioselective Alkylation, and Ring-Opening of 2-Phenyl-3H-pyridazino[6,1-b]quinazoline-3,10(5H)-dione

2002 ◽  
Vol 2002 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Dorottya Csányi ◽  
György Hajós ◽  
Géza Timári ◽  
Zsuzsanna Riedl ◽  
András Kotschy ◽  
...  
Keyword(s):  
Ring Opening ◽  
Structure Elucidation ◽  
Regioselective Alkylation

Structure Elucidation and Inhibitory Effects on NO Production of Clerodane Diterpenes from Ajuga decumbens

Planta Medica ◽  
2012 ◽  
Vol 78 (14) ◽  
pp. 1579-1593 ◽  
Author(s):  
Zhanping Sun ◽  
Yushan Li ◽  
Da-qing Jin ◽  
Ping Guo ◽  
Jing Xu ◽  
...  
Keyword(s):  
Structure Elucidation ◽  
No Production ◽  
Inhibitory Effects ◽  
Clerodane Diterpenes

Functionalized Poly(α-hydroxy acid)s via Ring-Opening Polymerization:  Toward Hydrophilic Polyesters with Pendant Hydroxyl Groups

2006 ◽  
Vol 39 (10) ◽  
pp. 3500-3508 ◽  
Author(s):  
M. Leemhuis ◽  
C. F. van Nostrum ◽  
J. A. W. Kruijtzer ◽  
Z. Y. Zhong ◽  
M. R. ten Breteler ◽  
...  
Keyword(s):  
Hydroxy Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Hydroxyl Groups
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