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1

A novel method for the mild and selective amidation of diesters and the amidation of monoesters

Zhenrong Guo, Eric D Dowdy, Wen-Sen Li, Richard Polniaszek, Edward Delaney

Journal:

Tetrahedron Letters

Year:

2001

Language:

english

File:

PDF, 94 KB

english, 2001

2

A practical method for the preparation of α′-chloroketones of N-carbamate protected-α-aminoacids

Ping Chen, Peter T.W. Cheng, Steven H. Spergel, Robert Zahler, Xuebao Wang, John Thottathil, Joel C. Barrish, Richard P. Polniaszek

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 230 KB

english, 1997

3

Stereoselective nucleophilic additions to the carbon-nitrogen double bond. 3. Chiral acyliminium ions

Polniaszek, Richard P., Belmont, Stephen E., Alvarez, Ramon

Journal:

Journal of Organic Chemistry

Year:

1990

Language:

english

File:

PDF, 2.86 MB

english, 1990

4

ChemInform Abstract: A Novel Method for the Mild and Selective Amidation of Diesters and the Amidation of Monoesters.

Zhenrong Guo, Eric D. Dowdy, Wen-Sen Li, Richard Polniaszek, Edward Delaney

Journal:

Year:

2001

File:

PDF, 34 KB

2001

5

ChemInform Abstract: Electronic Effects in the Acid-Promoted Deprotection of N-2,4-Dimethoxybenzyl Maleimides.

Daniel J. Watson, Eric D. Dowdy, Wen-Sen Li, Jiangji Wang, Richard Polniaszek

Journal:

Year:

2001

File:

PDF, 29 KB

2001

6

A new philosophy for teaching advanced organic chemistry: Representative laboratory experiment: Stereoselective reduction of a chiral iminium ion

Polniaszek, Richard P.

Journal:

Journal of Chemical Education

Year:

1989

Language:

english

File:

PDF, 3.28 MB

english, 1989

7

Preparation of potential intermediates for the synthesis of yohimbine and reserpine

Polniaszek, Richard P., Stevens, Robert V.

Journal:

Journal of Organic Chemistry

Year:

1986

Language:

english

File:

PDF, 766 KB

english, 1986

8

Preparation of (2S,5S)-2,5-dibenzylphospholanic acid

Polniaszek, Richard P.

Journal:

Journal of Organic Chemistry

Year:

1992

Language:

english

File:

PDF, 1.92 MB

english, 1992

9

Synthetic studies in the lysocellin family of polyether antibiotics. The total synthesis of ferensimycin B

Evans, David A., Polniaszek, Richard P., DeVries, Keith M., Guinn, Denise E., Mathre, David J.

Journal:

Journal of the American Chemical Society

Year:

1991

Language:

english

File:

PDF, 3.74 MB

english, 1991

10

Diastereoselective addition of organometallic reagents to chiral iminium ions: Synthesis of (S)-(+)-cryptostyline I.

Richard P. Polniaszek, Lawrence W. Dillard

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 271 KB

english, 1990

11

An Efficient Preparation of (S) -(-)-1-(2,6-Dichlorophenyl)ethylamine

Polniaszek, Richard P., Lichti, Cheryl F.

Journal:

Synthetic Communications

Year:

1992

Language:

english

File:

PDF, 264 KB

english, 1992

12

Research and Development of an Efficient Synthesis of Hexahydrofuro[2,3- b ]furan-3-ol Moiety—A Key Component of the HIV Protease Inhibitor Candidates

Yu, Richard H., Polniaszek, Richard P., Becker, Mark W., Cook, Charles M., Yu, Lok Him L.

Journal:

Organic Process Research & Development

Year:

2007

Language:

english

File:

PDF, 608 KB

english, 2007

13

Electronic effects in the acid-promoted deprotection of N-2,4-dimethoxybenzyl maleimides

Daniel J Watson, Eric D Dowdy, Wen-Sen Li, Jianji Wang, Richard Polniaszek

Journal:

Tetrahedron Letters

Year:

2001

Language:

english

File:

PDF, 77 KB

english, 2001

14

Stereospecific total syntheses of decahydroquinoline alkaloids (.+-.)-195A and (.+-.)-2-epi-195A

Polniaszek, Richard P., Dillard, Lawrence W.

Journal:

Journal of Organic Chemistry

Year:

1992

Language:

english

File:

PDF, 1.15 MB

english, 1992

15

Preparation, alkylation reactions, and conformational analysis of esters of phospholanic acid. Preparation and reactivity of (2S,5S)-1,2,5-tribenzyl-1-oxophospholane

Polniaszek, Richard P., Foster, Alvie L.

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 2.63 MB

english, 1991

16

ChemInform Abstract: Synthesis of Substituted 2,3-Dihydrobenzofuran in a Process Involving a Facile Acyl Migration.

Wen-Sen Li, Zhenrong Guo, John Thornton, Kishta Katipally, Richard Polniaszek, John Thottathil, Truc Vu, Michael Wong

Journal:

Year:

2002

File:

PDF, 34 KB

2002

17

Synthesis of analogues of the antitumor antibiotic at-125 (acivicin)

Robert V. Stevens, Richard P. Polniaszek

Journal:

Year:

1983

Language:

english

File:

PDF, 376 KB

english, 1983

18

Photochemistry of alkyl halides—VII : Cyclopropanation of alkenes

Paul J. Kropp, Norbert J. Pienta, Joy A. Sawyer, Richard P. Polniaszek

Journal:

Year:

1981

Language:

english

File:

PDF, 682 KB

english, 1981

19

Preparation of 2-Substituted Oxazoles.

Chennagiri R. Pandit, Richard P. Polniaszek, John K. Thottathil

Journal:

Year:

2002

File:

PDF, 27 KB

2002

20

Enantioselective total syntheses of indolizidine alkaloids 167B and 209D

Polniaszek, Richard P., Belmont, Stephen E.

Journal:

Journal of Organic Chemistry

Year:

1990

Language:

english

File:

PDF, 792 KB

english, 1990

21

ChemInform Abstract: Aminolysis of Esters or Lactones Promoted by NaHMDS — A General and Efficient Method for the Preparation of N-Aryl Amides.

Jianji Wang, Miguel Rosingana, Robert P. Discordia, Nachimuthu Soundararajan, Richard Polniaszek

Journal:

Year:

2001

File:

PDF, 29 KB

2001

22

Synthesis of substituted 2,3-dihydrobenzofuran in a process involving a facile acyl migration

Wen-Sen Li, Zhenrong Guo, John Thornton, Kishta Katipally, Richard Polniaszek, John Thottathil, Truc Vu, Michael Wong

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 81 KB

english, 2002

23

Stereoselective reductions of chiral iminium ions

Richard P. Polniaszek, Julia A. McKee

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 180 KB

english, 1987

24

Photochemical transformations of small ring compounds. 112. Photochemistry of cyclopropene derivatives. Formation and intramolecular trapping reactions of vinylcarbenes

Padwa, Albert, Blacklock, Thomas J., Loza, Roman, Polniaszek, Richard

Journal:

Journal of Organic Chemistry

Year:

1980

Language:

english

File:

PDF, 1.27 MB

english, 1980

25

Studies directed toward the synthesis of lysocellin class polyether antibiotics. The asymmetric synthesis of the C1-C29 ferensimycin synthon

David A. Evans, Richard P. Polniaszek

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 252 KB

english, 1986

26

ChemInform Abstract: Preparation of α-Chloroketones by the Chloroacetate Claisen Reaction.

Xuebao Wang, John K. Thottathil, Richard P. Polniaszek

Journal:

Year:

2000

File:

PDF, 29 KB

2000

27

Enantioselective total syntheses of indolizidine alkaloids (-)-205A and (-)-235B

Polniaszek, Richard P., Belmont, Stephen E.

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 946 KB

english, 1991

28

A Mild and Efficient Synthesis of 4-Aryl-quinolin-2(1H)-ones via a Tandem Amidation/Knoevenagel Condensation of 2-Amino-benzophenones with Esters or Lactones.

Jianji Wang, Robert P. Discordia, Gerard A. Crispino, Jun Li, John A. Grosso, Richard Polniaszek, Vu C. Truc

Journal:

Year:

2003

File:

PDF, 99 KB

2003

29

A mild and efficient synthesis of 4-aryl-quinolin-2(1H)-ones via a tandem amidation/Knoevenagel condensation of 2-amino-benzophenones with esters or lactones

Jianji Wang, Robert P. Discordia, Gerard A. Crispino, Jun Li, John A. Grosso, Richard Polniaszek, Vu C. Truc

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 111 KB

english, 2003

30

Remarkable examples of double diastereodifferentiation: Application to the Eudistomin and Eudistomidin alkaloids

Richard P. Polniaszek, Stephanie J. Bell

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 180 KB

english, 1996

31

PREPARATION OF 2-SUBSTITUTED OXAZOLES

Pandit, Chennagiri R., Polniaszek, Richard P., Thottathil, John K.

Journal:

Synthetic Communications

Year:

2002

Language:

english

File:

PDF, 156 KB

english, 2002

32

Preparation of (2S∗, 5S∗) -2,5-Dibenzyl Phospholanic Acid

Polniaszek, Richard P.

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1993

Language:

english

File:

PDF, 342 KB

english, 1993

33

Stereoselective nucleophilic additions to the carbon-nitrogen double bond. 2. Chiral iminium ions derived from "second generation" chiral amines

Polniaszek, Richard P., Kaufman, Craig R.

Journal:

Journal of the American Chemical Society

Year:

1989

Language:

english

File:

PDF, 714 KB

english, 1989

34

Stereospecific Preparation of Transglycidic Esters

Polniaszek, Richard P., Belmont, Stephen E.

Journal:

Synthetic Communications

Year:

1989

Language:

english

File:

PDF, 401 KB

english, 1989

35

Use of Benzofuran for Concomitant Protection of Aldehyde and Phenol Groups in the Preparation of Mycophenolic Acid Analogues

Fardis, Maria, Mertzman, Michael, Thomas, William, Kirschberg, Thorsten, Collins, Nicole, Polniaszek, Richard, Watkins, William J.

Journal:

Journal of Organic Chemistry

Year:

2006

Language:

english

File:

PDF, 89 KB

english, 2006

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