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Pyrans structure

Unexpectedly, 2//-pyran structure 72 is reported for products prepared by adding dienones 71 to malonodinitrile.116... [Pg.165]

The methodology of a pyran structure elucidation is illustrated by attempts to distinguish between two alternative structures, 628 and 629, assumed for the product of the reaction of 2-methoxybenzaldehyde with dimedone.133... [Pg.293]

Molecular refraction was used in a consideration of a 2//-pyran structure.475 Occasionally, liquid pyrans and thiopyrans have been characterized by refraction indices.19 24 144 189 238 314 427... [Pg.303]

See other pages where Pyrans structure is mentioned: [Pg.113]    [Pg.115]    [Pg.38]    [Pg.147]    [Pg.283]    [Pg.574]    [Pg.575]    [Pg.577]    [Pg.579]    [Pg.580]    [Pg.584]    [Pg.585]    [Pg.586]    [Pg.587]    [Pg.591]    [Pg.592]    [Pg.593]    [Pg.594]    [Pg.595]    [Pg.596]    [Pg.597]    [Pg.598]    [Pg.602]    [Pg.603]    [Pg.604]    [Pg.605]    [Pg.607]    [Pg.608]    [Pg.609]    [Pg.610]    [Pg.611]    [Pg.613]    [Pg.614]    [Pg.616]    [Pg.617]    [Pg.619]    [Pg.621]    [Pg.622]    [Pg.623]    [Pg.625]    [Pg.627]    [Pg.630]    [Pg.631]    [Pg.636]    [Pg.637]    [Pg.638]   
See also in sourсe #XX -- [ Pg.34 , Pg.147 ]



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Pyran structure

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