Process for producing .beta.-nitroenamine

Details Process for producing .beta.-nitroenamine Process for producing .beta.-nitroenamine

1996-09-13

1997-06-17

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

564336, 564366, 564468, 564485, 564494, 564509, C07C30702, C07C21124, C07C 4721, C07C 4565

Patent

active

056398956

ABSTRACT:
Disclosed is a process for producing .beta.-nitroenamine represented by the formula I: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and independently indicate a hydrogen atom or a C.sub.1 -C.sub.10 alkyl group which may be optionally substituted with at least one group selected from the group consisting of a halogen atom, a lower alkoxy group, an aryloxy group, a hydroxyl group or an aryl group, or an aryl group which may be optionally substituted with a halogen atom, a lower alkyl group, a lower alkoxy group, an aryl group, an aryloxy group, a nitro group, a cyano group, an acylamino group, a di-lower alkylamino group, an arylamino group, a hydroxyl group, an arylsulfonyl group, a mercapto group, a lower alkylthio group or an arylthio group, R.sub.1 and R.sub.2 may bond together to form a cycloalkyl or bicycloalkyl and R.sub.3 is a hydrogen atom, a lower alkyl group, a cycloalkyl group or an aralkyl group; and an intermediate for producing the .beta.-nitroenamine.

REFERENCES:
Hurd et al., J. American Chemical Society, 75, No. 1, 14 Jan. 1953 DC US, pp. 285-288.
Freeman et al., J. American Chemical Society, 78, No. 13, 7 Jul. 1956 DC US, pp. 3405-3408.
`Houben-Weyl "Methoden der organischen Chemie", vol. X/1, Part 1, 1971`, George Thieme Verlag, Stuttgart, pp. 399 and 1118.
Iimori et al., Tetrahedron Letters, pp. 2525-2528 (1979).
Tokumitsu et al., Nippon Kagaku Kaishi, pp. 88-93 (1983) (abstract).
Rajappa, Tetrahedron, pp. 1453-1480 (1981).

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