Abstract
Substituted acetic acids or acetyl chlorides react with phosphorus oxychloride in DMF to yield the vinamidinium salts 3a-j in moderate to excellent recrystallized yields (28-90%). The cations are conveniently isolated as their hexafluorophosphate salts, which are easily handled nonhygroscopic solids. The nitro compound 31 is prepared in 91% yield by nitration of the parent vinamidinium 3k. The X-ray crystal structure is reported for the 2-phenyl isomer 3e and displays minimal overlap of the two π-systems.
Original language | English (US) |
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Pages (from-to) | 4571-4574 |
Number of pages | 4 |
Journal | Journal of Organic Chemistry |
Volume | 65 |
Issue number | 15 |
DOIs | |
State | Published - Jul 28 2000 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Organic Chemistry