126451-67-0Relevant academic research and scientific papers
Enzymatic Preparation of Optically Active Bicycloheptene Derivatives, Building Blocks of Terpenoid Natural Products. An Attractive Alternative to Enantioselective Diels-Alder Syntheses
Eycken, J. Van der,Vandewalle, M.,Heinemann, G.,Laumen, K.,Schneider M. P.,et al.
, p. 306 - 308 (1989)
Bicycloheptene derivatives (1)-(3), building blocks of terpenoid natural products, have been prepared with high enantiometric purities by enzymatic hydrolysis of their racemic esters in the presence of porcine liver esterase (PLE) and an ester hydrolase from Pseudomonas sp. (SAM-II).
Functional norbornanyl ester derivatives, polymers and process for preparing same
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Paragraph 0234, (2013/12/04)
This invention relates to the new functional norbornanyl ester derivative and/or polymer compositions which are easily obtainable by reacting the Diels-Alder adduct of appropriate dienes and dienophiles with carboxylic acids. In particular, this invention relates to a new process for making cyclic chemical raw materials suitable for production coating, ink, adhesive, plasticizer, thermoplastic or thermosetting plastic and functional polymers.
COSMETIC OR DERMATOLOGICAL COMPOSITION COMPRISING A POLYMER BEARING JUNCTION GROUPS, AND COSMETIC TREATMENT PROCESS
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, (2010/10/03)
The present patent application relates to a cosmetic or dermatological composition comprising, in a cosmetically or dermatologically acceptable medium, a polymer comprising: (a) a polymer backbone that may be obtained by reaction: of a polyol comprising 3 to 6 hydroxyl groups;of a monocarboxylic acid containing 6 to 32 carbon atoms;of a polycarboxylic acid comprising at least two carboxylic groups COOH, and/or of a cyclic anhydride such as a polycarboxylic acid and/or of a lactone comprising at least one carboxylic group COOH; and(b) at least one junction group linked to the said polymer backbone and capable of establishing H bonds with one or more partner junction groups, each pairing of a junction group involving at least three H (hydrogen) bonds. The patent application also concerns a cosmetic treatment process using the said composition.
A total synthesis of (±)-hop ether
Lin, Ching-Han,Su, Yi-Lin,Tai, Huo-Mu
, p. 771 - 777 (2007/10/03)
A total synthesis of the iridoid monoterpene (±)-hop ether (2) is described. The Norrish I type fragmentation of bicyclo[2.2.1]heptone (5) is the key step.{A figure is presented}.
Acid-catalysed Lactonisation and Iodolactonisation of Norbornene-carboxylic Acids
Sadikun, Amirin bin,Davies, David I.
, p. 2461 - 2466 (2007/10/02)
The acid-catalysed lactonisation of 3-(norborn-5-en-2-yl)propionic acid and 4-(norborn-5-en-2-yl)butyric acid affords 3-(2-exo-hydroxynorborn-2-endo-yl)propionic acid spiro-γ-lactone and 4-(2-exo-hydroxynorborn-2-endo-yl)butyric acid spiro-δ-lactone, resp
