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Photochemistry of 6,6-Dimethyl- and 2,2,6,6-Tetramethyl-2H,6H-pyran-3-one

✍ Scribed by Erhan Er; Paul Margaretha

Publisher
John Wiley and Sons
Year
1994
Tongue
German
Weight
254 KB
Volume
77
Category
Article
ISSN
0018-019X

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✦ Synopsis

2

,

: 'H-NMR (CDCI,): 5.93 (dd, J = 10.7. 1.5); 5.67 6a. 7.7,8,octun-S-oiir @a): 'H-NMR (CDCI,): 3.98, 3.78 ( A R , . 0 ] o l l a l r (9a): ' H-N MR (CDCI,) : 4.02, 3.65 (.4 R, -c/io.~-aspiro~3.5/nori-X-i~.nr~ (7b): 'H-NMR (CDCI,): 6.04 (d, J = 10.4); 5.63 (d, ( d , J = 10.7);4.I0(dd,J=11.7,1.5);3.68(d,J=11.7). J = 17.1, 2 H): 2.71 (d, J = 14.9); 2.22 (d, J = 14.9). J = 14.8,2H);2.52(d,J=9.2);2.26(d,J=9.2). J = 10.4).

Comparative P/iotolyw uf'l arid 10 in Different Solvents (Merry-go-round experiments). Equimolar solns. of 1 and 10 were irradiated under conditions of total light absorption using a merry-go-round setup. The degree of conversion was monitored by GC using undecane as internal standard.

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