@nnsaikiacollege.org
ASSISTANT PROFESSOR
NN SAIKIA COLLEGE
Plant Science, Environmental Engineering, Applied Microbiology and Biotechnology, Toxicology
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Dhrubajit Borah, Pranaba Nanda Bhattacharyya, and Nazim Forid Islam
Wiley
AbstractHerein, an efficient, atom‐economic, environmentally benign catalytic protocol has been developed for synthesising ketones and aldehydes by acceptorless dehydrogenation of alcohols. The protocol employs C, C chelated Ir (III) NHC complexes to promote acceptorless dehydrogenation of both secondary and primary alcohols. Notably, oxidation of primary alcohol selectively yields the corresponding aldehyde where forming ester byproducts is possible. Using C, C chelated Ir (III) NHC complexes (0.1 mol%), and a catalytic amount of base tBuONa (5 mol%), several aliphatic and aromatic aldehydes and ketones including more challenging carbonyl compounds bearing heterocyclic rings were obtained in moderate to high yields. Moreover, the protocol is also efficient for synthesising industrially important molecules like heliotropin and 3,4,5‐trimethoxy acetophenone in moderate yields. Remarkably, the catalytic system allows the straightforward synthesis of the potentially bio‐active compound cholest‐4‐en‐3‐one through acceptorless dehydrogenation followed by double bond isomerisation under the reaction conditions. Low catalyst loading, mild reaction conditions, high selectivity, short reaction time, and broad‐substrate scopes are a few interesting characteristics of the catalytic protocol described herein.
Dhrubajit Borah, Pranaba Nanda Bhattacharyya, Bharat Chandra Nath, Rajashree Chetia, Nazim Forid Islam, and Bhaskar Sarma
Elsevier BV
Rachita Newar, Nasrin Sultana, Saikat Das, Bhoirob Gogoi, Nazim Forid Islam, Hemen Sarma, and Arabinda Baruah
Elsevier BV
Pranaba Nanda Bhattacharyya, Nazim Forid Islam, Bhaskar Sarma, Bharat Chandra Nath, Laith Khalil Tawfeeq Al-Ani, and Didier Lesueur
Springer Science and Business Media LLC
Deepak B. Shelke, Nazim F. Islam, Mahadev R. Chambhare, Hiralal B. Sonawane, Rupshikha Patowary, Ram Prasad, and Hemen Sarma
Elsevier BV
Miraji Hossein, Ripanda Asha, Ramadhani Bakari, Nazim Forid Islam, Guangming Jiang, and Hemen Sarma
Elsevier BV
Kaustuvmani Patowary, Tamanna Bhuyan, Rupshikha Patowary, Yugal Kishore Mohanta, Bibhu Prasad Panda, Suresh Deka, Nazim Forid Islam, Sanket J. Joshi, and Hemen Sarma
Elsevier BV
Bhoirob Gogoi, Nazim Forid Islam, and Hemen Sarma
Elsevier
Hiralal Sonawane, Deepak Shelke, Mahadev Chambhare, Nishi Dixit, Siddharam Math, Suparna Sen, Siddhartha Narayan Borah, Nazim Forid Islam, Sanket J. Joshi, Balal Yousaf,et al.
Elsevier BV
Songita SONOWAL, Amy R. NAVA, Sanket J. JOSHI, Siddhartha Narayan BORAH, Nazim F. ISLAM, Soumya PANDIT, Ram PRASAD, and Hemen SARMA
Elsevier BV
Sajjad Ghahari, Somayeh Ghahari, Saeid Ghahari, Ghorban Ali Nematzadeh, Rashmi Rekha Saikia, Nazim Forid Islam, and Hemen Sarma
Elsevier
Niharika Koch, Nazim F. Islam, Songita Sonowal, Ram Prasad, and Hemen Sarma
Elsevier BV
Hemen Sarma, N.F. Islam, Ram Prasad, M.N.V. Prasad, Lena Q. Ma, and Jörg Rinklebe
Elsevier BV
Nazim F. Islam and Hemen Sarma
Wiley
N.F. Islam, Rupshikha Patowary, and Hemen Sarma
Elsevier
Nazim Forid Islam, Hemen Sarma, and Majeti NarasimhaVara Prasad
Elsevier
Hemen Sarma, N. F. Islam, and M. N. V. Prasad
Springer Science and Business Media LLC
Hemen Sarma, N.F. Islam, P. Borgohain, A. Sarma, and M.N.V. Prasad
Elsevier BV