You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via14.4.1.1.1.2.3.1.6 Variation 6: Phosphoryl Chloride as Condensing Agent
Please login to access the full content or check if you have access via
Williams, A. C.; Camp, N., Science of Synthesis, (2003) 14, 379.
Examples of the use of phosphoryl chloride as a condensing agent in the reaction of phenols with 3-oxoalkanoates to give 2H-1-benzopyran-2-ones are given by the formation of 93–95 (Scheme 30).[161,222–225]
Meeeee 88 8M-8-Meeeeeeeee-8-eeee ee Meeeeeee Meeeeeeee Meeeeeeee ee Meeeeeeeee Meeeeeee[888,888–888]
Meeeeeeeeeee Meeeeeeee
Meeee 8-(8-Meeeeee-8-eeeeee-8-eee-8-eeeeee-8M-8-eeeeeeeeee-8-ee)eeeeeeeeee [88, M8 = (MM8)8Me; M8 = Me; M8 = (MM8)8MM8Me]; Meeeeee Meeeeeeee:[888]
M eeeeeee ee 8-eeeeeeeeeeeee-8,8-eeee (888 e, 8.88 eee), eeeeeee 8-eeeeeeeeeeeeeeeeeee (888 e, 8.88 eee), eee MMMe8 (888 eM, 8.88 eee) eee eeeeeee ee ee, eeeeeeeee eeee eeeeeeeeeee eeeeeeee, eeeee eee eeeeeee eeeeeeeeee, eee eeee eeeeeee ee eeeee eee e eeeee ee 88 e. Mee eeeee eee eeeeeeeee ee MMMe8, eee eeee eeeeee eeee M8M (8 ×), eeeee (Me8MM8), eee eee eeeeeee eeeeeeeeee. Mee eeeeee eeeeeee eee eeeeeeeeeeeeee (eeeeeee) ee eeee eeeeeeeee eeeeeeee; eeeee: 888 e (88%); ee 888–888°M.
References
| [161] | Meeee, M. M. M. M.; Meeee, M. M.; Meeee, M. M., M. Meeeee Meee. Mee., (8888) 88, 888. |
| [222] | Meeeeeeeeee, M. M.; Meeee, M.; Meeeeeeee, M. M., M. Me. Meee. Mee., (8888) 88, 8888. |
| [223] | Meeee, M.; Meeee, M. M., M. Me. Meee. Mee., (8888) 88, 8888. |
| [224] | Meeeee, M.; Meeee, M., Meee. Mee., (8888) 888, 88. |
| [225] | Meeeee, M. M.; Meeeeeeeee, M.; Meeeee, M., Meeeee M. Meee., Meee. M, (8888) 88, 888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) 8/8, 888.
Return to Top