69148-92-1Relevant articles and documents
New Chiral Auxiliaries and New Optically Pure Ketene Equivalents Derived from Tartaric Acids. Improved Synthesis of (-)-7-Oxabicyclohept-5-en-2-one
Reymond, Jean-Louis,Vogel, Pierre
, p. 729 - 736 (1990)
Condensation of di-O-acetyl (R,R)- and (S,S)-tartaric anhydride with acetals of N-alkylaminoacetaldehyde gave new chiral auxiliaries (1R,5S,7R)- and (1S,5R,7S)-3-alkyl-2-oxo-3-aza-6,8-dioxabicyclooctane-7-carboxylic (RADO(alkyl)-X and SADO(alkyl)-X) derivatives, respectively.The latter could be used to generate the corresponding 1-cyanovinyl esters that add to furan to give readily crystallizable, optically pure Diels-Alder adducts.The method was illustrated by application to the synthesis of (-)-(1S,4S)-7-oxabicyclohept-5-en-2-one.
Iodine-Catalyzed Oxidative Rearrangement of Amines to α-Amino Acetals and α-Amino Aldehydes
Zhou, Min-Jie,Zhu, Shou-Fei,Zhou, Qi-Lin
supporting information, (2019/02/19)
A protocol for iodine-catalyzed oxidative rearrangement of tertiary and secondary amines has been developed. This metal-free protocol provides an atom-economical, efficient access to synthetically useful α-amino acid derivatives from readily available acyclic and cyclic tertiary or secondary amines. (Figure presented.).
2-(1,4-Benzodioxan-2-ylalkyl)imidazoles useful as antihypertensives and platelet aggregation inhibitors
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, (2008/06/13)
2-(1,4-Benzodioxan-2-ylalkyl)imidazoles having the general formula: STR1 wherein R1, and R2 and R3 are independently selected from the group consisting of hydrogen, and alkyl (1-6C), and wherein n is an integer equal to 0, 1 or 2, and the pharmaceutically acceptable acid addition salts thereof, are α2 blockers and thus are useful as affectors of the CNS, specifically as platelet aggregation inhibitors and as antihypertensives.