Volume 31; Issue 50

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Tetrahedron Letters
Volume 31; Issue 50

Tetrahedron Letters

Volume 31; Issue 50

1

Graphical abstracts

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 576 KB

english, 1990

2

A new transmetallation route to mixed trimethylstannylcuprates: Me3Sn(r)Cu(CN)Li2

Bruce H. Lipshutz, Sunaina Sharma, Deborah C. Reuter

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 214 KB

english, 1990

3

A new method for the in situ generation of Cp2Zr(H)Cl (Schwartz' Reagent)

Bruce H. Lipshutz, Robert Keil, Edmund L. EIIsworth

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 253 KB

english, 1990

4

Quantitative metalations of 2-substituted 1,3-dithianes at −78°c using n-BuLi/Na-O-t-Bu

Bruce H. Lipshutz, Emiliano Garcia

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 227 KB

english, 1990

5

Stepwise syntheses of unsymmetrical tetra-arylporphyrins. Adaptation of the macdonald dipyrrole self-condensation methodology

David M. Wallace, Kevin M. Smith

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 245 KB

english, 1990

6

Fast oligonucleotide deprotection phosphoramidite chemistry for DNA synthesis

Huynh Vu, Christie McCollum, Karen Jacobson, Pete Theisen, Ravi Vinayak, Elizabeth Spiess, Alex Andrus

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 254 KB

english, 1990

7

Silicon directed diastereo- and enantioselective mukaiyama michael tandem aldol condensation: a novel strategy for six membered ring cyclisation

BraJ B. Lohray, R. Zimbiniski

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 236 KB

english, 1990

8

Spiro indolinone beta-lactams, inhibitors of poliovirus and rhinovlrus 3C-proteinases

Jerry W. Skiles, Daniel McNeil

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 250 KB

english, 1990

9

High oxlnation state transition metal carboxylates as acylating agents

Joel Recht, Brett I. Cohen, Alan S. Goldman, Joachim Kolm

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 292 KB

english, 1990

10

Cycloadditions of hexachlorocyclopentadiene to 7-substituted norbornadienes: remote substituent effects on reacfivity and stereoselectivity

K.N Houk, Paul H Mueller, Yun-Dong Wu, Paul H Mazzocchi, David Shook, Frederick Khachik

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 227 KB

english, 1990

11

Theory of rates and stereoselctivities and of cycloadditions to 7-substituted norbornadienes.

K.N. Houk, Yun-Dong Wu, Paul H. Mueller, Pierluigi Caramella, Michael N. Paddon-Row, Shigeru Nagase, Paul H. Mazzocchi

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 250 KB

english, 1990

12

Synthesis of a new flavonoid-antioxidant

G Beck, A Bergmann, K Keβeler, G Wess

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 170 KB

english, 1990

13

Fluoroolefin dipeptide isosteres — I.: The synthesis of Glyψ(CFCH)Gly and racemic Pheψy(CFCH)Gly

Thomas Allmendinger, Pascal Furet, Ernst Hungerbühler

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 255 KB

english, 1990

14

Fluoroolefin dipeptide isosteres -II. : Enantioselectlve synthesis of both antipodes of the phe-gly dlpeptide mimic

Thomas Allmendinger, Eduard Felder, Ernst Hungarbühler

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 244 KB

english, 1990

15

Chyhotrypsin-catalyzed fragment coupling synthesis of D-Phe(6)-GnRH

V Schellenberger, U Schellenberger, H.-D Jakubke, A Hänsicke, M Bienert, E Krause

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 116 KB

english, 1990

16

2-butyne-1,4-diylidene-2,2′bis (1,3-dithiole): acetylenic analogs of tetrathiafulvalene

Abdallah Khanous, Alain Gorgues, Fernand Texier

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 664 KB

english, 1990

17

Acetylenic analogs of tetrathiafulvalene: alkynes-hexacarbonyldicobalt complexes mediated synthesis and Π-donor properties

Abdallah Khanous, Alain Gorgues, Michel Jubault

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 249 KB

english, 1990

18

Synthesis of hydroisoindoles via intramolecular Diels-Alder reactions

Alain Guy, Yvonne Graillot

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 198 KB

english, 1990

19

“Carba” peptide bond surrogates: synthesis of Boc-L-Leu-…(CH2-CH2)-L-Phe-OH and Boc-LLeu-ψ-(CH2-CH2)-D-Phe-OH through a horner-emmons reaction.

Marc Rodriguez, Annie Heitz, Jean Martinez

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 265 KB

english, 1990

20

A new, short and efficient synthesis of both enantiomers of carnitine

F.D. Bellamy, M. Bondoux, P. Dodey

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 207 KB

english, 1990

21

Enzymatic regioselective acylation of the 3′-hydroxyl groups of 2′- deoxy-5-fluorouridine (FUdR) and 2′-Deoxy-5-trifiuoromethyluridine (CF3UdR).

Kenji Nozaki, Atuhiko Uemura, Jun-ichi Yamashita, Mitsugi Yasumoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 120 KB

english, 1990

22

Diastereospecific synthesis of (−)-statine

Tomihisa Ohta, Sojiro Shiokawa, Rumiko Sakamoto, Shigeo Nozoe

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 209 KB

english, 1990

23

Catalytic asymmetric intramolecular hydrosilation

Kohei Tamao, Toshihiko Tohma, Naoki Inui, Osamu Nakayama, Yoshihiko Ito

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 293 KB

english, 1990

24

Isolation and biosynthesis of (−)-indolactam I, a new congener of indole alkaloid tumor promoter teleocidins

Kazuhiro Irie, Shin-ichiro Kajiyama, Koichi Koshimizu, Hideo Hayashi, Motoo Arai

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 264 KB

english, 1990

25

Novel thermal decarbonylative dimerization of 1,2,3,4,5,6-hexahydrobenzo [1,2;4,5]dicyclobutene-3,6-dione

Masaji Oda, Keiji Okada, Takeshi Motegi, Ling-Kang Liu, Yuh-Sheng Wen

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 143 KB

english, 1990

26

A convergent synthesis of optically active aspyrone.

Takeyoshi Sugiyama, Tetsuya Murayama, Kyohei Yamashita

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 159 KB

english, 1990

27

Catalytic asymmetric epoxidation of unfunctionalized olefins

Ryo Irie, Keiko Noda, Yoshio Ito, Naohide Matsumoto, Tsutomu Katsuki

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 257 KB

english, 1990

28

Chiral prostaglandin syntheses via conjugate addition of (z)vinylzincate involving kinetic resolution and enenantioface selection.

Takashi Takahashi, Makoto Nakazawa, Mikiya Kanoh, Keiji Yamamoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 283 KB

english, 1990

29

Highly periselective [2,3]wittig rearrangements on dihydrofuran and dihydropyran rings

Katsuhiko Tomooka, Masashi Watanabe, Takeshi Nakai

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 156 KB

english, 1990

30

One-step conversion of flavanones into isoflavones: a new facile biomimetic synthesis of isoflavones

Takeshi Kinoshita, Koji Ichinose, Ushio Sankawa

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 173 KB

english, 1990

31

Synthesis and Diels-Alder reaction of stable aryl free 1,3-diazabutadiene

Ibrahim Ibnusaud, E.J. Padma Malar, Narayanaswamy Sundaram

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 125 KB

english, 1990

32

A stereoselective synthesis of (3S,4S) statine and related compounds

D Misiti, G Zappia

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 192 KB

english, 1990

33

Use of BOP reagent for the suppression of diketopiperazine formation in boc/bzl solid-phase peptide synthesis

Margarida Gairí, Paul Lloyd-Williams, Fernando Albericio, Ernest Giralt

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 284 KB

english, 1990

34

Multiply charged anions from molecules with extended π-systems

Rainer Schenk, Klaus Müllen, Olof Wennerström

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 299 KB

english, 1990

35

Enzyme-catalyzed alcoholysis of flavone acetates in organic solvent

Mariapina Natoli, Giovanni Nicolosi, Mario Piattelli

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 229 KB

english, 1990

36

Iodofunctionalization of alkynylsulfides with IPy2BF4

José Barluenga, Pedro J. Campos, Fernando López, Isidro Llorente, Miguel A. Rodríguez

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 216 KB

english, 1990

37

Hetarylation of C-nucleophiles: a new course for the reaction of N-fluoropyridiniun salts with carbanions.

Andrei A Gakh, Alexander S Kiselyov, Victor V Semenov

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 210 KB

english, 1990

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