septanosen.
/ˈsɛptənəʊz/, /ˈsɛptənəʊs/, U.S. /ˈsɛptəˌnoʊz/, /ˈsɛptəˌnoʊs/ Chemistry.
A sugar molecule containing a seven-membered ring. Frequently as a modifier.
ΚΠ
1933 Chem. Abstr. 27 3453 An equil. mixt. of α- and β-2,3,4,5-tetraacetylgalactoseptanoses.]
1934 Chem. Abstr. 28 1025 Some indication of a parallelism between the instability of the free sugars (furanoses, septanoses) and the ease of hydrolysis of their glucosides.
1948 R. J. McIlroy Chem. Polysaccharides i. 4 A third type of ring, the seven membered or septanose structure has been prepared.
2005 Jrnl. Org. Chem. 70 3314/2 The oxepine products described here are viable glycosyl donors for the synthesis of septanose carbohydrates.
Derivatives
ˈseptanoside n. a glycoside in which the sugar component is a septanose.
ΚΠ
1934 Chem. Abstr. 28 1025 For an approx. 1% soln. in 0.01 N HCl of the septanoside..the half-time value of hydrolysis at 95° is about 28 min.
2010 Tetrahedron Lett. 51 1209 The septanosides were synthesized via mCPBA [= meta-chloroperoxybenzoic acid] epoxidation and methanolysis of d-mannose, d-galactose, and d-glucose-based oxepines.
This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022).
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n.1934