Concepedia

Joseph D. Armstrong

JD

34

Publications

2.3K

Citations

24

H-Index

1986

Active since

Affiliations

Merck & Co., Inc., Rahway, NJ, USA (United States)(Current)

University of Colorado Boulder

Joseph D. Armstrong is an author at Merck & Co., Inc., Rahway, NJ, USA (United States) specializing in organic chemistry, chemistry, and engineering.

Top concepts

Publications per year

1986–2021

34

Publications

34

Highly Efficient Asymmetric Synthesis of Sitagliptin

Karl B. Hansen, Yi Hsiao, Feng Xu et al. · Journal of the American Chemical Society · 2009 · 304 citations

Stereochemical control in the ester enolate Claisen rearrangement. 1. Stereoselectivity in silyl ketene acetal formation

Robert E. Ireland, Peter Wipf, Joseph D. Armstrong · The Journal of Organic Chemistry · 1991 · 262 citations

, , +11

Highly Efficient Synthesis of β-Amino Acid Derivatives via Asymmetric Hydrogenation of Unprotected Enamines

Yi Hsiao, Nelo R. Rivera, Thorsten Rosner et al. · Journal of the American Chemical Society · 2004 · 247 citations

, , +15

Palladium-Catalyzed Synthesis of Aryl Sulfides from Aryl Triflates

Nan Zheng, J. Christopher McWilliams, Fred J. Fleitz et al. · The Journal of Organic Chemistry · 1998 · 164 citations

, , +9

First Generation Process for the Preparation of the DPP-IV Inhibitor Sitagliptin

Karl B. Hansen, Jaume Balsells, Spencer D. Dreher et al. · Organic Process Research & Development · 2005 · 158 citations

, , +14

Rows per page

1–5 of 34