Crystal structure of 3-methoxycarbonyl-2-(4-methoxyphenyl)-8-oxo-1-azaspiro[4.5]deca-1,6,9-trien-1-ium-1-olate
2014 ◽
Vol 70
(11)
◽
pp. o1200-o1201
Keyword(s):
The title compound, C18H17NO5, was prepared by a synthetic strategy based on the Heck reaction from Morita–Baylis–Hillman adducts. The five-membered ring adopts a slightly twisted conformation on the Ca—Cm(a = aromatic and m = methylene) bond. The dihedral angle between the five-membered ring and the spiro aromatic ring is 89.35 (7)°; that between the five-membered ring and the 4-methoxybenzene ring is 4.65 (7)°. Two short intramolecular C—H...O contacts occur. In the crystal, molecules are linked by C—H...O hydrogen bonds to generate a three-dimensional network.
2006 ◽
Vol 62
(7)
◽
pp. o2677-o2679
◽
Keyword(s):
2014 ◽
Vol 70
(9)
◽
pp. 130-133
◽
2014 ◽
Vol 70
(12)
◽
pp. o1272-o1272
Keyword(s):
2021 ◽
Vol 77
(5)
◽
pp. 532-536
2009 ◽
Vol 65
(6)
◽
pp. o1209-o1209
◽
Keyword(s):
2016 ◽
Vol 72
(8)
◽
pp. 1219-1222
Keyword(s):
2014 ◽
Vol 70
(10)
◽
pp. o1130-o1130
◽
Keyword(s):
2012 ◽
Vol 68
(6)
◽
pp. o1614-o1615
Keyword(s):
2015 ◽
Vol 71
(10)
◽
pp. o719-o720
◽
Keyword(s):
2014 ◽
Vol 70
(9)
◽
pp. o1029-o1030
Keyword(s):