ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
On the Synthesis of Substituted 2-Buten-4-olides and 3-Amino-1-methyl-3-pyrrolin-2-oneα-Azido-γ-lactones (2a-c) in ethanol eliminate with catalytic amounts of sodium ethoxide 1 mole of nitrogen and rearrange to yield 2-amino-2-buten-4-olides (5a-c). Analogously, 3-azido-1-methyl-2-pyrrolidone (7d) is converted into 3-amino-1-methyl-3-pyrrolin-2-one (8d). Under these conditions α-benzylidenamino-γ-lactone 11a undergoes rearrangement to give 2-benzylamino-2-buten-4-olide 14.
Notes:
α-Azido-γ-lactone (2a-c) eliminieren in Äthanol mit katalytischen Mengen Natriumäthylat Stickstoff und lagern sich in die 2-Amino-buten-(2)-olide-(4.1) 5a-c um. Entsprechend entsteht aus 3-Azido-1-methyl-pyrrolidon-(2) (7d) das 3-Amino-1-methyl-Δ3-pyrrolon-(2) (8d). Das α-Benzylidenamino-γ-lacton 11a lagert unter diesen Bedingungen in das 2-Benzyl-amino-buten-(2)-olid-(4.1) 14 um.
Additional Material:
9 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19711040815
