+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Coumarins from aster praealtus

Coumarins from aster praealtus

Phytochemistry 28(6): 1729-1736

Chemical analysis of aerial parts and roots of Aster praealtus provided, besides the known coumarins umbelliferone, marmin, epoxyaurapten and 6'-hydroxy-.beta.-cycloaurapten, four new 7-0-monoterpene ether derivatives of umbelliferone, praealtin A-D. The structures of the new compounds were established by NMR, IR, UV and mass spectral analyses and the molecular structure of praeltin A was determined by single crystal X-ray diffraction. No coumarins were detected in the following taxa: A. adnatus, A. concolor, A. dumosus .times. lateriflorus and A. lateriflorus, A. patens, A. spinosus, A. subulatus var. liqulatus, and A. tenuifolius. Aster adnatus provided the .DELTA.7-sterol, spinasterol, and A. spinosus gave the known acetylene lachnophyllum lactone.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 007165863

Download citation: RISBibTeXText

DOI: 10.1016/s0031-9422(00)97834-8

Related references

Aster coerulescens the same as A. praealtus. Rhodora 51(604): 91-92, 1949

Variety trials with Aster amellus L., aster dumosus L., Aster ericoides L., Aster vimineus Lam., Aster novae-angliae L. and Aster novi-belgii L. 1973

The cytogeography of Aster pilosus (Compositae-Astereae). II. Survey of the range, with notes on Aster depauperatus, Aster parviceps, Aster porteri. Rhodora 87(851): 367-379, 1985

The cytogeography of aster pilosus compositae astereae 2. survey of the range with notes on aster depauperatus aster parviceps and aster porteri. Rhodora 87(851): 367-380, 1985

Genetic resemblance of allotetraploid Aster ascendens to its diploid progenitors Aster falcatus and Aster occidentalis. Canadian Journal of Botany 76(2): 338-344, 1998

Revision of the aster lanceolatus complex including aster simplex and aster hesperius compositae asteriaceae a multivariate morphometric study. Canadian Journal of Botany 65(5): 1047-1062, 1987

The cyto geography of aster lanceolatus synonyms aster simplex and aster paniculatus in ontario canada with additional counts from populations in the usa. Canadian Journal of Botany 57(4): 397-402, 1979

Wild aster lanceolatus x aster lateriflorus hybrids in ontario canada and comments on the origin of aster ontarionis compositae astereae. Canadian Journal of Botany 60(10): 1895-1906, 1982

The Aster novae-angliae, Aster amethystinus, Aster multi-florus complex. Rhodora 41(485): 190-192, 1939

Additional studies of Aster georgianus, Aster patens, and Aster phlogifolius (Asteraceae). SIDA Contributions to Botany 15(2): 305-315, 1992

Observations on morphology and cytology of Aster hemisphaericus, A. paludosus, and A. chapmanii (Asteraceae) with comments on chromosomal base number and phylogeny of Aster subg. Aster sect. Heleastrum. Systematic Botany 7(1): 60-70, 1982

Coumarins. IV. Coumarins of Pteryxia terebinthina. Structures of two new coumarins, isopteryxin and calipteryxin. Journal of Pharmaceutical Sciences 56(2): 184-187, 1967

Studies in the synthesis of coumarin alpha pyrone and furo coumarins part 5 kostanecki robinson acylation of 7 hydroxy 6 acyl 8 methyl 4 alkyl coumarins or aryl coumarins. Journal of the Indian Chemical Society 47(1): 36-38, 1970

Coumarins and related compounds part 9 a new synthesis of benzo coumarins and 3 methyl benzo coumarins from naphthols and acrylic esters. Journal of the Chemical Society Section C Organic Chemistry (18): 2618-2620, 1969

Iso coumarins 4. synthesis of 5 6 di methoxy iso coumarins 6 7 di methoxy iso coumarins 7 8 di methoxy iso coumarins 5 7 di methoxy iso coumarins 5 8 di methoxy 3 methyl iso coumarins and a new synthesis of racemic 6 methoxy mellein. Proceedings of the Indian Academy of Sciences Chemical Sciences 89(6): 525-532, 1980