Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Sreekanth Bachu"'
Autor:
Sulur G. Manjunatha, Sreekanth Bachu, Mohana Kumari, Sridharan Ramasubramanian, Ramachandra Puranik, Sudhir Nambiar, Vibha Gautam
Publikováno v:
Tetrahedron Letters. 55:6441-6446
A simple and efficient methodology for the synthesis of 5-amino-quinazolines and 4-amino-indoles via Semmler–Wolff aromatisation reaction has been carried out. The oximation of keto intermediates followed by Semmler–Wolff aromatisation using acet
Autor:
Sulur G. Manjunatha, Andiappan Murugan, Ravi Ramakrishnan, Sreekanth Bachu, Sridharan Ramasubramanian, Sudhir Nambiar, Vasantha Krishna Kadambar, Venkata Rao Torlikonda, Sajan George, Chandrasekhara Reddy
Publikováno v:
Organic Process Research & Development. 18:646-651
An efficient and scalable synthesis of AZD3264 is described in which the differential reactivities of various halogen atoms have been employed. The process involves five linear chemical steps with three isolated stages starting from commercially avai
Autor:
Sridharan Ramasubramanian, Vasantha Krishna Kadambar, Sulur G. Manjunatha, Sreekanth Bachu, Sudhir Nambiar, Andiappan Murugan, Puranik Ramachandra
Publikováno v:
Tetrahedron Letters. 55:3348-3350
A simple and efficient procedure for the syntheses of 4-acetamido-1-arylindazoles from corresponding 1-aryl-6,7-dihydro-5 H -indazol-4-one oximes by Semmler–Wolff aromatization using acetic anhydride and sodium iodide is reported.
Autor:
Sridharan Ramasubramanian, Gareth P. Howell, Vasantha Krishna Kadambar, Sreekanth Bachu, Andiappan Murugan, M. Rajashekher Reddy, Sudhir Nambiar, Sulur G. Manjunatha, Venkatarao Torlikonda, Withnall Jane
Publikováno v:
Tetrahedron Letters. 53:5739-5741
A simple and efficient procedure for the regio-selective synthesis of 1,2-aminoalcohols from terminal epoxides and chlorohydrins by using NaHMDS as the source of amine is reported. The wider scope and utility of this method is demonstrated.
Autor:
Sridharan Ramasubramanian, Sreekanth Bachu, Vasantha Krishna Kadambar, Andiappan Murugan, Sudhir Nambiar, Sulur G. Manjunatha, Puranik Ramachandra
Publikováno v:
ChemInform. 45
A facile protocol using acetic anhydride and NaI is developed for Semmler—Wolf aromatization of oximes (I) to give indazole derivatives.