143774-55-4Relevant academic research and scientific papers
Synthesis and Biological Evaluation of Calothrixins B and their Deoxygenated Analogues
Muthu Ramalingam, Bose,Dhatchana Moorthy, Nachiappan,Chowdhury, Somenath Roy,Mageshwaran, Thiyagarajan,Vellaichamy, Elangovan,Saha, Sourav,Ganesan, Karthikeyan,Rajesh, B. Navin,Iqbal, Saleem,Majumder, Hemanta K.,Gunasekaran, Krishnasamy,Siva, Ramamoorthy,Mohanakrishnan, Arasambattu K.
, p. 1285 - 1315 (2018/02/17)
A series of calothrixin B (2) analogues bearing substituents at the 'E' ring and their corresponding deoxygenated quinocarbazoles lacking quinone unit were synthesized. The cytotoxicities of calothrixins 1, 2, and 15b-p and quinocarbazole analogues were i
Synthesis of calothrixins and its analogs using FeCl3-mediated domino reaction protocol
Ramalingam, Bose Muthu,Saravanan, Velu,Mohanakrishnan, Arasambattu K.
supporting information, p. 3726 - 3729 (2013/08/23)
A novel one pot synthesis of calothrixin B and its analogs is achieved involving an FeCl3-mediated domino reaction of enamines in dry DMF at reflux. Alternatively, the enamines upon interaction with CuBr2 in DMF at reflux led to the
Synthesis of di-, tri-, and tetra-substituted carbazole analogs involving annulation methodology
Ramesh, Neelamegam,Rajeshwaran, Ganesan Gobi,Mohanakrishnan, Arasambattu K.
experimental part, p. 3592 - 3602 (2009/09/06)
Synthesis of substituted carbazole analogs was achieved via Michael addition followed by intramolecular cyclization and subsequent aromatization.
Synthesis of N-protected indolaldehydes using modified Hass procedure
Balamurugan, Ramalingam,Mohanakrishnan, Arasambattu K.
, p. 11078 - 11085 (2008/02/12)
A detailed study on oxidation of N-protected bromomethylindoles into the respective aldehydes was carried out. Using a modified Hass procedure, synthesis of aryl-/hetero-aryl aldehydes in particular indolaldehydes is achieved in reasonable yields.
An efficient preparation of 1-phenylsulfonylindolyl methyl sulfoxides using KF/m-CPBA
Mohanakrishnan, Arasambattu K.,Ramesh, Neelamegam
, p. 4231 - 4233 (2007/10/03)
A variety of 1-phenylsulfonylindolylmethyl sulfides are selectively oxidized to the corresponding sulfoxides using a hitherto unexplored KF/m-CPBA system. A major advantage is the absence of over-oxidation.
Synthesis and cycloaddition of 2,4-dihydropyrroloindoles
Jeevanandam, Arumugasamy,Srinivasan, Panayencheri C.
, p. 2663 - 2666 (2007/10/02)
Friedel-Crafts acylation of 2-methyl-1-phenylsulfonylindole 6 gave the 3-acyl derivatives 7 which upon side chain bromination with N-bromosuccinimide (NBS) followed by treatment with primary amines afforded the title compounds 9.Diels-Alder reaction of 9 with dimethyl acetylenedicarboxylate (DMAD) gave the polysubstituted carbazoles 12.
