3570-58-9Relevant articles and documents
TRANSPARENT BODY PRODUCTION METHOD, TRANSPARENT BODY, AND AMORPHOUS BODY
-
Paragraph 0115; 0116, (2017/10/10)
A transparent body production method that includes subjecting the compound represented by formula (1) to heating at a temperature equal to or greater than the melting point of said compound. In formula (1), each of W1 and W2 is the group represented by formula (2) in which the ring Z is an aromatic hydrocarbon ring, X is a single bond or —S—, R1 is a single bond or an alkylene group having 1-4 carbon atoms, R2 is a specific substituent, and m is an integer of 0 or higher, the group represented by formula (4) is —OH— or a (meth)acryloyloxy group, each of the rings Y1 and Y2 is an aromatic hydrocarbon ring, R is a single bond or a specific divalent group, each of R3a and R3b is —CN, a halogen group, or a monovalent hydrocarbon group, and each of n1 and n2 is an integer of 0-4.
VINYL-GROUP-CONTAINING FLUORENE COMPOUND
-
Paragraph 0140-0141, (2016/03/22)
A novel vinyl-group-containing fluorene compound and a method for producing the same, a polymerizable monomer and cross-linking agent including this compound, a leaving-group-containing fluorene compound, a monovinyl-group-containing fluorene compound, and methods for producing the same. This vinyl-group-containing fluorene compound is represented by formula (1). In the formula, W1 and W2 represent a group represented by formula (2), a group represented by formula (4), a hydroxyl group, or a (meth)acryloyloxy group, R3a and R3b represent a cyano group, a halogen atom, or a monovalent hydrocarbon, and n1 and n2 are integers of 0-4. In formulas (2) and (4), a ring (Z) is an aromatic hydrocarbon ring, X is a single bond or a group represented by —S—, R1 is a single bond or a C1-4 alkylene group, R2 is a specific substituent group such as a monovalent hydrocarbon, and m is an integer of 0 or greater.
Mechanism of gold(I)-catalyzed rearrangements of acetylenic amine-N-oxides: Computational investigations lead to a new mechanism confirmed by experiment
Noey, Elizabeth L.,Luo, Yingdong,Zhang, Liming,Houk
experimental part, p. 1078 - 1084 (2012/03/12)
Figure Persented: Quantum mechanical studies of the mechanism of gold-catalyzed rearrangements of acetylenic amine-N-oxides to piperidinones or azepanones have revealed a new mechanism involving a concerted heteroretroene reaction, formally a 1,5 hydrogen shift from the N-alkyl groups to the vinyl position of a gold-coordinated methyleneisoxazolidinium or methyleneoxazinanium. Density functional calculations (B3LYP, B3LYP-D3) on the heteroretroene mechanism reproduce experimental regioselectivities and provide an explanation as to why the hydrogen is transferred from the smaller amine substituent. In support of the proposed mechanism, new experimental investigations show that the hydrogen shift is concerted and that gold carbenes are not involved as reaction intermediates.