Science of Synthesis

Williams, A. C.; Camp, N., Science of Synthesis, (2003) 14, 379.

Reaction of a phenol with ethyl acetoacetate gives the 2H-1-benzopyran-2-ones ‌92‌ in moderate yield (‌Scheme 29‌).[‌220‌,‌221‌]

‌Meeeee 88‌ 8M-8-Meeeeeeeee-8-eeee ee Meeeeeee Meeeeeeee Meeeeeeee ee Meeeeeee Meeeeeeeeee[‌888‌,‌888‌]

Meeeeeeeeeee Meeeeeeee

8-Meeeee-8M-8-eeeeeeeeee-8-eee (‌88‌, M8 = M8 = M); Meeeeee Meeeeeeee:[‌888‌]

Me e 8-M, eeeee-eeeeee eeeee-eeeeeeee eeeee eeeeeeee eeee e eeeeee eeeeeeeeee eeeeeee, eeeeeeee eeeeee, eee eee eeeeeeeee eeeeeeeee ee e eee eeee eee eeeeee eeeeee (888 e, 8 eee), eeeee eeeeeeeeeeee (888 e, 8 eee), eee eee eeeeeeeeeeee (888 eM). Mee eeeeeee eee eeeeee ee 888°M ee ee eee eeee, eeeeeeee eeeeeeeee eee eeeee MeMe8 (888 e, 8 eee) ee eee eeeeeeeeeeee (8.8 M) eee eeeee eeee e eeeeee ee 88–88 eee. Mee eeeeeeee eeeeee eee eeeeeeee ee e eeeeeeeeeee eee eee eeeeeee eeeeee ee 888°M eee 8 e. Mee eeee eee eeee eeeeee ee ee eee eeeeeee eeee e eeeeeee ee eeeee eeeee eeeee MMe eee M8M (888 eM), eeeeee eeeeeeee eeeeeeeeee. Mee eeeeeeeee eee eeee eeeeeeeeeeee eee eeeee eeeeeeeeeeee eee eeeeee eeee e eeee eeeee eeeeee eeeee eee eeeeee eeeeeee eee eeeeeee eeeee ee. 888 eM ee eeeeeeeeee eee eeeeeeeee. Mee eee eeeeeee eee eeeeee ee e eeeee eeeeeeeeee eeeeee eee eee eeeee eeeeeee eeeee eeeeeee. Mee eeeeeeeeeeee eeeee eee eeeeeeee eee eee eeeeeee eeeeeee eeeee eeeeeee eeeeeeee. Mee eeeeeee eee eeeeeeeeeeee eeeeeeeee eeeee eeeeeee eeeeeeee eee eee eeeeeeee eeeeeee ee 888–888°M/88 Meee eeeeeeeee. Mee eee-eeeeee eee eeee eeeeeeeee eeee eeeeeee eee eeeeeeeee ee Me8M, eee eee eeee eeeeee eeee eeeeeeee ee 8% ee MeMM eeeee ee eeeeeee eeeee eee eeeeeeeee eeee eee eeeeeee eeeee. Meeeeeeeeee ee eee eeeeeee eee eeeeeeeeeeeeeeeee ee eee eeeeeee [eeeeeeeee eeeee (ee 88–88°M)/eeeeeee 8:8] eeee eee eeeeeee; eeeee: 888 e (88%); ee 88–88°M.

References

Meeeeee Meeeeeeeeee

• 8.Meeeee-Meee, (8888) 8/8, 8888.
• 8.Meeeee-Meee, (8888) 8/8, 888.
• 8.Meeeee-Meee, (8888) 8/8, 888.
• 8.Meeeee-Meee, (8888) 8/8e, 888.