Crystal Structure of 4-Hydroxy-2-Methyl-5H-Naphtho[1′,2′:5,6]Pyrano [4,3-b]Pyridin-5-One: A New Heterohelicene
2005 ◽
Vol 2005
(2)
◽
pp. 86-87
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Keyword(s):
X Ray
◽
X-ray analysis of the title compound reveals that the molecule relieves steric strain in the fjord region by small adjustments of some bonding parameters rather than any remarkable helical twist. The results show that a (C–)H···N contact shorter than the van der Waals radii of the H and N atoms is an energetically favourable interaction.
2015 ◽
Vol 71
(5)
◽
pp. o354-o355
Keyword(s):
2014 ◽
Vol 70
(12)
◽
pp. 547-549
Keyword(s):