Synthesis 2018; 50(03): 599-606
DOI: 10.1055/s-0036-1591493
paper
© Georg Thieme Verlag Stuttgart · New York

Controlled and Efficient Stereoselective Synthesis of Oxindole-Appended 1-Aza-1,3-butadiene Derivatives via a One-Pot Buchwald–Hartwig Amination/Elimination Strategy

Kandapalam Arun Prasath Lingam*
a   Department of Chemistry, Kamaraj College, Thoothukudi, Tamil Nadu 628003, India   Email: prasatharun08@gmail.com
,
Periyasamy Amutha
a   Department of Chemistry, Kamaraj College, Thoothukudi, Tamil Nadu 628003, India   Email: prasatharun08@gmail.com
,
Paneerselvam Yuvaraj
b   CSIR-North East Institute of Science & Technology, Branch Laboratory, Lamphelpat, Imphal, Manipur 795004, India
,
Kodirajan Selvakumar*
c   Department of Chemistry, Thiagarajar College, Madurai, Tamil Nadu 625009, India   Email: selvaramkumar@gmail.com
› Author Affiliations
We gratefully acknowledge the financial assistance from DST-Fast Track Young Scientist Award (Ref. No. CS/FT95/2014) and SERB-EMEQ (Ref. No. SB-EMEQ-297/2014).
Further Information

Publication History

Received: 18 September 2017

Accepted after revision: 21 September 2017

Publication Date:
12 October 2017 (online)


Abstract

The enamine-free, stereoselective synthesis of oxindole-appended­ 1-aza-1,3-butadienes with an electron-withdrawing-group at the 3-position has been achieved in good yields from (Z)-β-bromo-substituted Morita–Baylis–Hillman (MBH) adducts of oxindoles via a one-pot Buchwald–Hartwig amination/elimination strategy. The versatility of the (Z)-β-bromo MBH adducts of oxindoles was further demonstrated by the formation of π-conjugated oxindole derivatives in typical palladium­-catalysed coupling reactions.

Supporting Information