Synthesis 2019; 51(22): 4239-4248
DOI: 10.1055/s-0039-1690190
paper
© Georg Thieme Verlag Stuttgart · New York

Pd/PTABS: An Efficient Catalytic System for the Aminocarbonylation of a Sugar-Protected Nucleoside

Shatrughn Bhilare
a   Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai-400019, India   eMail: ar.kapdi@ictmumbai.edu.in
,
Jagrut Shah
a   Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai-400019, India   eMail: ar.kapdi@ictmumbai.edu.in
,
Vinayak Gaikwad
a   Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai-400019, India   eMail: ar.kapdi@ictmumbai.edu.in
,
Gaurav Gupta
a   Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai-400019, India   eMail: ar.kapdi@ictmumbai.edu.in
,
Yogesh S. Sanghvi
b   Rasayan Inc., 2802 Crystal Ridge Road, Encinitas, California 92024-6615, USA
,
Bhalchandra M. Bhanage
a   Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai-400019, India   eMail: ar.kapdi@ictmumbai.edu.in
,
Anant R. Kapdi
a   Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai-400019, India   eMail: ar.kapdi@ictmumbai.edu.in
› Institutsangaben
S.B. is grateful to the University Grants Commission, India for a UGC-SAP fellowship (SRF).V.G. thanks the Council of Scientific and Industrial Research (CSIR), New Delhi, Government of India, for providing a Senior Research Fellowship (SRF).
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Publikationsverlauf

Received: 01. Juli 2019

Accepted after revision: 05. August 2019

Publikationsdatum:
05. September 2019 (online)


Abstract

A highly efficient and mild protocol for the aminocarbonylation of a nucleoside is developed by employing palladium/(1,3,5-triaza-7-phosphaadamantan-1-ium-1-yl)butane-1-sulfonate (Pd/PTABS) as the catalytic system. The developed aminocarbonylation methodology employs CO gas at a relatively low temperature of 60 °C and is suitable for a wide range of amines, including (heteroaryl)benzylic, aliphatic acyclic, alicyclic and secondary amines. This protocol is also utilized for the synthesis of a sangivamycin precursor by carrying out the Pd-catalyzed amination and aminocarbonylation simultaneously. The utility of this protocol is further demonstrated by the synthesis of the drugs moclobemide and nikethamide.

Supporting Information