Linear Positional Isomer Sorting in Nonporous Adaptive Crystals of a Pillar[5]arene

2018 ◽  
Vol 140 (9) ◽  
pp. 3190-3193 ◽  
Author(s):  
Kecheng Jie ◽  
Yujuan Zhou ◽  
Errui Li ◽  
Run Zhao ◽  
Ming Liu ◽  
...  
Keyword(s):  
Positional Isomer

Tropical Marine-Algae. VI. New Monoterpenes From Several Collections of Chondrococcus hornemannii (Rhodophyta, Gigartinales, Rizophyllidaceae)

1989 ◽  
Vol 42 (11) ◽  
pp. 1983 ◽  
Author(s):  
JC Coll ◽  
AD Wright
Keyword(s):  
Red Algae ◽  
Positional Isomer ◽  
High Field ◽  
Marine Algae ◽  
Circumstantial Evidence ◽  
New Metabolites

Four collections of the red algae Chondrococcus hornemannii( Lyngbye ) Schmitz afforded a range of monoterpenes. Structures of ten new metabolites were elucidated by using high- field n.m.r. spectroscopy techniques including 2.D proton-carbon correlation experiments. The new monoterpenes were: (Z)-3-bromo-8-chloro-6-chloromethyl-2-methylocta-1,6-diene (9,6-hydroxymethyl-2-methylocta-2,8-dien-6-ol (6), (Z)-6-hydroxymethyl-2-methylocta-1,6-diene- 3,8-diol (7), (2)-6-hydroxymethyl-2-methyIocta-2,6-dien-8-ol (8), (2)-8-chloro-6-chloromethyl-3- methoxyocta-1,6-diene (9), (Z)-8-chloso-6-chloromethyl-2-methylocta-l,6-dien-3-ol (10), (2E,62) 8-chloro-6-chloromethyl-1-methoxy-2-methylocta-2,6-diene (11), (2E,6Z)-8-chloro-6-chloromethyl- 2-methylocta-2,6-dien-1-ol (12), (Z)-6-chloromethyl-3,8-dimethoxy-2-methylocta-1,6-diene (13) and its positional isomer (Z)-6-chloromethyl-1,8-dimethoxy-2-methyoca-26-diene (14). Although it is possible that some of the metabolites listed may be artefacts of extraction, circumstantial evidence is offered which suggests that most isolates were present in the plant prior to extraction.

Positional Isomer of the Muscle Relaxant Dantrolene

1975 ◽  
Vol 64 (6) ◽  
pp. 1047 ◽  
Author(s):  
Thomas J. Schwan ◽  
K.O. Ellis
Keyword(s):  
Muscle Relaxant ◽  
Positional Isomer

Synthesis and NMR assignments of galactosylgloboside and its β-d-GalNAc-(1→4)-α-d-Gal-linked positional isomer in a conjugatable form

1999 ◽  
Vol 315 (3-4) ◽  
pp. 251-261 ◽  
Author(s):  
Wei Zou ◽  
Jean-Robert Brisson ◽  
Suzon Larocque ◽  
Rebecca L. Gardner ◽  
Harold J. Jennings
Keyword(s):  
Positional Isomer ◽  
Nmr Assignments
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