Ru-Catalyzed Selective Catalytic Methylation and Methylenation Reaction Employing Methanol as the C1 Source
作者:Nandita Biswas、Dipankar Srimani
DOI:10.1021/acs.joc.1c01185
日期:2021.8.6
details, kinetic progress, and temperature-dependent product distribution, which revealed the slow and steady generation of in situ formed aldehyde, is the key factor to get the higher yield of the β-methylated product. To establish the environmental benefit of this reaction, green chemistry metrics are calculated. Furthermore, dimerization of 2-naphthol via methylene linkage and formation of N-methylation
Oxidation of bis(2-hydroxy-1-naphthyl)methane and similar bisnaphthols with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone. Structure and synthesis of novel products
作者:Tirumalai R. Kasturi、Betageri Rajasekhar、Gonibella J. Raju、Gowravaram Madhusudhan Reddy、Ramamoorthy Sivaramakrishnan、Narayanan Ramasubbu、Kailasam Venkatesan
DOI:10.1039/p19840002375
日期:——
the structures were finally confirmed by an X-raycrystalstructure analysis of (12a). Hydrogenation of compounds (12a) and (13a) has been shown to give the dihydroxy compound (14) via C–C bond cleavage. An alternative synthesis of the dispironaphthalenones (12a) and (13a) was achieved by oxidation of the dihydroxy compound (14), prepared by an independent method. The generality of the oxidation of
DDQ oxidation of bisnaphthols - structures of novel products
作者:Tirumalai R. Kasturi、Srirangam K. Jayaram、Jitendra A. Sattigeri、Palle V.P. Pragnacharyulu、Tayur N. Guru Row、Renuka K、Kailasam Venkatesan、Noor Shahina Begum、Netaji Munirathinam
DOI:10.1016/s0040-4020(01)87985-0
日期:1993.8
Oxidation of bisnaphthols (1a-c) with DDQ resulted in the formation of 10a-a″, 10b-b″, 14a-c and 19a-c in addition to earlier reported products. Structures were assigned on the basis of detailed spectral analyses(1H, 13C, 1H1H HOMOCOSY and FUCOUP). Structures 10b, and 14c and 19a were further confirmed by single crystal X-ray analyses. The formation of these compounds has been explained by a suitable