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1

One-pot synthesis of selenoureas and selenocarbamates via selenation of isocyanates with bis(dimethylaluminum) selenide

Hajime Maeda, Masaru Takashima, Koichi Sakata, Tatsuya Watanabe, Mitsunori Honda, Masahito Segi

Journal:

Tetrahedron Letters

Year:

2011

Language:

english

File:

PDF, 328 KB

english, 2011

2

Diastereoselective aldol condensation of acylsilane silyl enol ethers with acetals

Mitsunori Honda, Wataru Oguchi, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2002

Language:

english

File:

PDF, 186 KB

english, 2002

3

Novel route to selenoketones from ketones by the use of bis(dimethylaluminum) selenide

Masahito Segi, Tadashi Koyama, Tadashi Nakajima, Sohei Suga, Shinji Murai, Noboru Sonoda

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 237 KB

english, 1989

4

ChemInform Abstract: [4 + 2] Dimerization and Cycloaddition Reactions of α,β-Unsaturated Selenoaldehydes and Selenoketones.

Guang Ming Li, Shuqiang Niu, Masahito Segi, Ralph A. Zingaro, Hiroaki Yamamoto, Kentaro Watanabe, Tadashi Nakajima, Michael B. Hall

Journal:

Year:

1999

Language:

english

File:

PDF, 42 KB

english, 1999

5

ChemInform Abstract: On the Behavior of α,β-Unsaturated Thioaldehydes and Thioketones in the Diels—Alder Reaction.

Guang Ming Li, Shuqiang Niu, Masahito Segi, Koichiro Tanaka, Tadashi Nakajima, Ralph A. Zingaro, Joseph H. Reibenspies, Michael B. Hall

Journal:

Year:

2001

Language:

english

File:

PDF, 41 KB

english, 2001

6

Diastereoselective Aldol Condensation of Acylsilane Silyl Enol Ethers with Acetals.

Mitsunori Honda, Wataru Oguchi, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2002

Language:

english

File:

PDF, 40 KB

english, 2002

7

The Reaction of Selenoaldehydes with 2-Methoxyfuran Using Their Generation by Retro Diels—Alder Reaction.

Aojia Zhou, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2003

File:

PDF, 123 KB

2003

8

Generation of Selenoaldehydes via Retro Diels—Alder Reaction and the Cycloaddition with Enophiles

Journal:

Year:

2003

File:

PDF, 70 KB

2003

9

Diastereoselective Alkylation and Reduction of β-Alkoxyacylsilanes: Stereoselective Construction of Three Contiguous Stereogenic Centers.

Mitsunori Honda, Naoto Ohkura, Shin-ichi Saisyo, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2004

File:

PDF, 246 KB

2004

10

Generation of Selenoaldehydes via Retro Diels—Alder Reaction and Their Behavior in the Reaction with Some Enophiles

Masahito Segi, Aojia Zhou, Mitsunori Honda

Journal:

Year:

2005

File:

PDF, 8 KB

2005

11

Stereoselective Tandem Aldol-Tishchenko Reaction with Acylsilanes.

Mitsunori Honda, Ryota Iwamoto, Yoshie Nogami, Masahito Segi

Journal:

Year:

2005

File:

PDF, 33 KB

2005

12

Stereoselective Acid-Catalyzed Homoallylic Rearrangement of Cyclopropylsilylmethanols: An Efficient Route to Z-Homoallyl Derivatives.

Mitsunori Honda, Yuichi Yamamoto, Hideji Tsuchida, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2005

File:

PDF, 35 KB

2005

13

An Efficient Synthesis of 5-Silyl-2,3-dihydrofurans via Acid-Catalyzed Ring-Enlargement of Cyclopropyl Silyl Ketones and Their Functionalization.

Mitsunori Honda, Tomoyuki Naitou, Hiromitsu Hoshino, Seiji Takagi, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2006

File:

PDF, 32 KB

2006

14

ChemInform Abstract: The Reaction of 1-Silylcyclopropyl Anions with Dichloromethyl Methyl Ether: The Efficient Synthesis of Cyclopropyl Silyl Ketones via Cyclopropylidene Derivatives.

Toshiaki Nishizawa, Kenta Nakae, Mitsunori Honda, Ko-Ki Kunimoto, Masahito Segi

Journal:

Year:

2010

File:

PDF, 48 KB

2010

15

ChemInform Abstract: A Novel Utilization of Acylsilanes in Organic Synthesis

Mitsunori Honda, Masahito Segi

Journal:

Year:

2010

File:

PDF, 14 KB

2010

16

ChemInform Abstract: One-Pot Synthesis of Selenoureas and Selenocarbamates via Selenation of Isocyanates with Bis(dimethylaluminum) Selenide.

Hajime Maeda, Masaru Takashima, Koichi Sakata, Tatsuya Watanabe, Mitsunori Honda, Masahito Segi

Journal:

Year:

2011

File:

PDF, 40 KB

2011

17

ChemInform Abstract: Synthesis of Selenohydantoins from Isoselenocyanates and α-Amino Acids.

Hajime Maeda, Koichi Sakata, Masaru Takashima, Tatsuya Watanabe, Nobuteru Mizukami, Mitsunori Honda, Masahito Segi

Journal:

Year:

2011

Language:

english

File:

PDF, 35 KB

english, 2011

18

ChemInform Abstract: Conjugate Addition of Vinylic Organocuprates Generated via Transmetalation of Phenylseleno-Substituted Vinylzirconates: Functionalization at the 4-Position of Enones.

Masahito Segi, Masahiro Suzuki, Kazuki Shintaku, Hajime Maeda

Journal:

Year:

2011

File:

PDF, 48 KB

2011

19

ChemInform Abstract: Reaction of Acylsilanes with α-Sulfinyl Carbanions: Regioselective Synthesis of Silyl Enol Ethers.

Mitsunori Honda, Tadashi Nakajima, Maiko Okada, Keita Yamaguchi, Mitsuhiro Suda, Ko-Ki Kunimoto, Masahito Segi

Journal:

Year:

2011

File:

PDF, 38 KB

2011

20

Conjugate addition of vinylic organocuprates generated via transmetalation of phenylseleno-substituted vinylzirconates: Functionalization at the 4-position of enones

Masahito Segi, Masahiro Suzuki, Kazuki Shintaku, Hajime Maeda

Journal:

Heteroatom Chemistry

Year:

2011

Language:

english

File:

PDF, 233 KB

english, 2011

21

Catalytic Cu(I) assisted polyfunctionalization of zirconacyclopentenes

Bruce H. Lipshutz, Masahito Segi

Journal:

Year:

1995

Language:

english

File:

PDF, 825 KB

english, 1995

22

A Useful Method for the Synthesis of Selenoaldehydes with Electron-withdrawing Substituents

Masahito Segi, Masakazu Kato, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 187 KB

english, 1991

23

Ring-enlargement of cyclopropylacylsilanes with sulfuric or triflic acid. Selective formation of cyclobutanones or 2-silyl-4,5-dihydrofurans

Ta-i Nakajima, Masahito Segi, Takeshi Mituoka, Yasuyuki Fukute, Mitsunori Honda, Kaneyuki Naitou

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 239 KB

english, 1995

24

Reaction behavior of cyclopropylmethyl cations derived 1-phenylselenocyclopropylmethanols with acids

Mitsunori Honda, Toshiaki Nishizawa, Yuko Nishii, Shuhei Fujinami, Masahito Segi

Journal:

Year:

2009

Language:

english

File:

PDF, 452 KB

english, 2009

25

Stereoselective acid-catalyzed homoallylic rearrangement of cyclopropylsilylmethanols: an efficient route to Z-homoallyl derivatives

Mitsunori Honda, Yuichi Yamamoto, Hideki Tsuchida, Masahito Segi, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 126 KB

english, 2005

26

An efficient synthesis of 5-silyl-2,3-dihydrofurans via acid-catalyzed ring-enlargement of cyclopropyl silyl ketones and their functionalization

Mitsunori Honda, Tomoyuki Naitou, Hiromitsu Hoshino, Seiji Takagi, Masahito Segi, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 114 KB

english, 2005

27

Acid-catalyzed reaction behavior of 1-silylcyclopropylmethanols

Mitsunori Honda, Takahito Mita, Toshiaki Nishizawa, Toru Sano, Masahito Segi, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 183 KB

english, 2006

28

An efficient 1,3-dipolar cycloaddition between aromatic selenoaldehydes and nitrile oxides or nitrile imines: an easy access to selenium-containing five-membered heterocyclic ring system

Masahito Segi, Katsuhiko Tanno, Masumi Kojima, Mitsunori Honda, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 140 KB

english, 2007

29

Stereoselective hetero Diels–Alder reaction of selenoaldehydes with pentavalent phosphole chalcogenides

Masahito Segi, Katsuhiko Kawaai, Mitsunori Honda, Shuhei Fujinami

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 204 KB

english, 2007

30

The reaction of 1-silylcyclopropyl anions with dichloromethyl methyl ether: the efficient synthesis of cyclopropyl silyl ketones via cyclopropylidene derivatives

Toshiaki Nishizawa, Kenta Nakae, Mitsunori Honda, Ko-Ki Kunimoto, Masahito Segi

Journal:

Tetrahedron Letters

Year:

2010

Language:

english

File:

PDF, 1.16 MB

english, 2010

31

Reaction of acylsilanes with α-sulfinyl carbanions: regioselective synthesis of silyl enol ethers

Mitsunori Honda, Tadashi Nakajima, Maiko Okada, Keita Yamaguchi, Mitsuhiro Suda, Ko-Ki Kunimoto, Masahito Segi

Journal:

Tetrahedron Letters

Year:

2011

Language:

english

File:

PDF, 275 KB

english, 2011

32

Reaction of acylsilanes with sulfur ylides. selective formation of silyl enol ethers or β-ketosilanes.

Tadashi Nakajima, Masahito Segi, Fumitosi Sugimoto, Reiko Hioki, Seiko Yokota, Kiyoshi Miyashita

Journal:

Year:

1993

Language:

english

File:

PDF, 1.33 MB

english, 1993

33

Reversal of π-facial diastereoselection in the hydride reduction of selenanones. Further application of the exterior frontier orbital extension model

Shuji Tomoda, Jian Zhang, Daisuke Kaneno, Masahito Segi *, Aojia Zhou

Journal:

Tetrahedron Letters

Year:

2000

Language:

english

File:

PDF, 219 KB

english, 2000

34

An efficient construction of a selenocarbonyl unit by the reaction of acetal derivatives with bis(dimethylaluminum) selenide

Masahito Segi, Toshiyuki Takahashi, Hiroyuki Ichinose, Guang Ming Li, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 300 KB

english, 1992

35

Intramolecular Diels-Alder reaction of selenoaldehydes

Masahito Segi, Mamoru Takahashi, Tadashi Nakajima, Sohei Suga, Shinji Murai, Noboru Sonoda

Journal:

Tetrahedron Letters

Year:

1988

Language:

english

File:

PDF, 234 KB

english, 1988

36

α,β-Unsaturated selenoaldehydes and selenoketones the reaction behavior as a heterodiene and/or a dienophile

Guang Ming Li, Masahito Segi, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 272 KB

english, 1992

37

The reaction of selenoaldehydes with 2-methoxyfuran using their generation by retro Diels–Alder reaction

Aojia Zhou, Masahito Segi, Tadashi Nakajima

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 104 KB

english, 2003

38

Diastereoselective alkylation and reduction of β-alkoxyacylsilanes: stereoselective construction of three contiguous stereogenic centers

Mitsunori Honda, Naoto Ohkura, Shin-ichi Saisyo, Masahito Segi, Tadashi Nakajima

Journal:

Year:

2003

Language:

english

File:

PDF, 240 KB

english, 2003

39

ChemInform Abstract: An Efficient Synthesis of Cyclopropyl Silyl Ketones.

Mitsunori Honda, Kenta Nakae, Toshiaki Nishizawa, Mitsuhiro Suda, Ko-Ki Kunimoto, Masahito Segi

Journal:

Year:

2012

File:

PDF, 40 KB

2012

40

ChemInform Abstract: [3 + 2] Cycloaddition of Seleno- and Thioaldehydes with Cyclic Azomethine Imines.

Hajime Maeda, Yusuke Takamizawa, Masahito Segi

Journal:

Year:

2012

File:

PDF, 30 KB

2012

41

An efficient synthesis of cyclopropyl silyl ketones

Mitsunori Honda, Kenta Nakae, Toshiaki Nishizawa, Mitsuhiro Suda, Ko-Ki Kunimoto, Masahito Segi

Journal:

Year:

2011

Language:

english

File:

PDF, 2.51 MB

english, 2011

42

19th International Congress on Heterocyclic Chemistry || Synthesis of Heterocyclic Compounds Containing Selenium and Nitrogen Atoms via Cycloaddition Reaction of Selenoaldehydes

Year:

2003

Language:

english

File:

PDF, 450 KB

english, 2003

43

[3+2] Cycloaddition of Seleno- and Thioaldehydes with Cyclic Azomethine Imines

Segi, Masahito, Maeda, Hajime, Takamizawa, Yusuke

Journal:

Year:

2012

Language:

english

File:

PDF, 996 KB

english, 2012

44

Intramolecular Diels-Alder Reaction of Thioaldehydes

Segi, Masahito, Takahashi, Mamoru, Nakajima, Tadashi, Suga, Sohei, Sonoda, Noboru

Journal:

Synthetic Communications

Year:

1989

Language:

english

File:

PDF, 245 KB

english, 1989

45

Synthetic transformation of homopropargylic selenides to conjugated diene-substituted alcohols and amines using diisopropoxy(η2-alkyne)titanium intermediates

Shintaku, Kazuki, Nishino, Yoko, Maeda, Hajime, Segi, Masahito

Journal:

Year:

2013

Language:

english

File:

PDF, 1.93 MB

english, 2013

46

Synthesis and Structure of Telluroamides and Selenoamides. The First Crystallographic Study of Telluroamides

Li, Guang Ming, Zingaro, Ralph A., Segi, Masahito, Reibenspies, Joseph H., Nakajima, Tadashi

Journal:

Organometallics

Year:

1997

Language:

english

File:

PDF, 281 KB

english, 1997

47

Direct conversion of aldehydes to seleno- and thioaldehydes

Segi, Masahito., Nakajima, Tadashi., Suga, Sohei., Murai, Shinji., Ryu, Ilhyong., Ogawa, Akiya., Sonoda, Noboru.

Journal:

Journal of the American Chemical Society

Year:

1988

Language:

english

File:

PDF, 420 KB

english, 1988

48

[4 + 2] Dimerization and Cycloaddition Reactions of α,β-Unsaturated Selenoaldehydes and Selenoketones

Li, Guang Ming, Niu, Shuqiang, Segi, Masahito, Zingaro, Ralph A., Yamamoto, Hiroaki, Watanabe, Kentaro, Nakajima, Tadashi, Hall, Michael B.

Journal:

Journal of Organic Chemistry

Year:

1999

Language:

english

File:

PDF, 302 KB

english, 1999

49

On the Behavior of α,β-Unsaturated Thioaldehydes and Thioketones in the Diels−Alder Reaction

Li, Guang Ming, Niu, Shuqiang, Segi, Masahito, Tanaka, Koichiro, Nakajima, Tadashi, Zingaro, Ralph A., Reibenspies, Joseph H., Hall, Michael B.

Journal:

Journal of Organic Chemistry

Year:

2000

Language:

english

File:

PDF, 368 KB

english, 2000

50

Reaction of Selenocarbonyl Compounds with Oxygen-Functionalized Conjugated Dienes

Segi, Masahito, Yamamoto, Hiroaki, Hori, Takeyoshi, Nakajima, Tadashi

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1998

Language:

english

File:

PDF, 197 KB

english, 1998

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