Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Mukund G. Kulkarni"'
Autor:
Mukund G. Kulkarni, Mayur P. Desai, Deekshaputra R. Birhade, Yunus B. Shaikh, Ajit N. Dhatrak, Ramesh Gannimani
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1725-1729 (2012)
Efficient syntheses are described for the synthetically important 3-methylquinoline-4-carbaldehydes 6a–h from o-nitrobenzaldehydes 1a–h employing a Wittig-olefination–Claisen-rearrangement protocol. The Wittig reaction of o-nitrobenzaldehydes w
Externí odkaz:
https://doaj.org/article/3198da7c50514e78838a56a03039ce18
Autor:
Mukund G. Kulkarni, Attrimuni P. Dhondge, Sanjay W. Chavhan, Ajit S. Borhade, Yunnus B. Shaikh, Deekshaputra R. Birhade, Mayur P. Desai, Nagorao R. Dhatrak
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 6, Iss 1, Pp 876-879 (2010)
Wittig olefination–Claisen rearrangement protocol was applied to obtain 3-allyl oxindole. This oxindole was then converted to (±)-coerulescine and (±)-horsfiline.
Externí odkaz:
https://doaj.org/article/3426423e3eac4dcf9aa15f4f00d8f82d
Autor:
Mukund G. Kulkarni, Sanjay W. Chavhan, Mahadev P. Shinde, Dnyaneshwar D. Gaikwad, Ajit S. Borhade, Attrimuni P. Dhondge, Yunnus B. Shaikh, Vijay B. Ningdale, Mayur P. Desai, Deekshaputra R. Birhade
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 5, Iss 1, p 4 (2009)
A zeolite-catalyzed, simple, one-pot, solvent-free, cost effective, and environmentally benign process for the synthesis of dihydropyrimidones is described. This reaction is scaleable to multigram scale and the catalyst is recyclable. This methodolog
Externí odkaz:
https://doaj.org/article/ec6a402456bb4308b6ca1a459369c8c0
Publikováno v:
Tetrahedron: Asymmetry. 26:746-750
A successful application of the Wittig-olefination–Claisen rearrangement protocol gave the allyl vinyl ether 12 , which was efficiently converted into (−)-tashiromine alkaloids in a short sequence with high overall yield.
Autor:
Rangarao Kolla, Mukund G. Kulkarni, Narendra Kumar Tripathy, Chinmoy Pramanik, Srinivasarao Sompalli, Kiran Bapat, Ashok Chaudhari, Mukund K. Gurjar
Publikováno v:
Organic Process Research & Development. 18:495-500
Commercial manufacturing of benzphetamine hydrochloride along with its impurity profiling is disclosed. Deoxygenation of pseudoephedrine is reported with ∼100% retention by shielding the amine group as its tert-butyl carbamate, which is very straig
Autor:
Mukund K. Gurjar, Narendra Kumar Tripathy, Sandeep Kotharkar, Yogesh More, Tushar P. Khaladkar, Balaji Vasant Chaugule, Kaliaperumal Neelakandan, Ashok Chaudhari, Ajit S. Borhade, Mukund G. Kulkarni, Chinmoy Pramanik, Pradip Patil, Dinkar Gotrane
Publikováno v:
Organic Process Research & Development. 18:152-156
A commercially viable manufacturing process for propofol (1) is described. The process avoids acid–base neutralization events during isolation of intermediate, 2,6-di-isopropylbenzoic acid (3) and crude propofol, and thus simplifies the synthesis o
Autor:
Mukund G. Kulkarni, Viraj A. Bhosale
Publikováno v:
Tetrahedron Letters. 56:2568-2570
An efficient total synthesis of (±) Xyloketal H is described, the Wittig olefination–Claisen rearrangement protocol has served here as the key transformation for constructing the core structure of the metabolite.
Autor:
Yunnus B. Shaikh, Mukund G. Kulkarni, Ajit N Dhatrak, Ramesh Gannimani, Deekshaputra R. Birhade, Mayur P. Desai
Publikováno v:
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1725-1729 (2012)
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1725-1729 (2012)
Efficient syntheses are described for the synthetically important 3-methylquinoline-4-carbaldehydes 6a–h from o-nitrobenzaldehydes 1a–h employing a Wittig-olefination–Claisen-rearrangement protocol. The Wittig reaction of o-nitrobenzaldehydes w
Autor:
Nagorao R. Dhatrak, Deekshaputra R. Birhade, Attrimuni P. Dhondge, Ajit S. Borhade, Yunnus B. Shaikh, Sanjay W. Chavhan, Mukund G. Kulkarni, Dnyaneshwar D. Gaikwad
Publikováno v:
Tetrahedron: Asymmetry. 23:1234-1237
The synthesis of (+)-isofagomine 1 using 4-pentenol 3 as a chiral precursor is described herein.
Autor:
Deekshaputra R. Birhade, Attrimuni P. Dhondge, Mukund G. Kulkarni, Nagorao R. Dhatrak, Ajit S. Borhade, Yunnus B. Shaikh
Publikováno v:
Tetrahedron Letters. 52:5559-5562
A stereodivergent route, starting from d -glyceraldehyde derivative, employing Wittig olefination–Claisen rearrangement protocol is reported for the synthesis of six novel carbahexofuranoses—carba-α- d -glucofuranose, carba-β- d -altrofuranose,