42-1215
amp

2,6-Di-i-propylphenylimidoneophylidene[di(2,5-dimethylpyrrolyl)] molybdenum(VI)
C₃₄H₄₅MoN₃; FW: 591.68; yellow to orange pwdr. air sensitive, (store cold)
Technical Note:
1. Precursor for the preparation of a new class of enyne metathesis catalysts.
Reference:
1. J. Am. Chem. Soc., 2007, 129, 12645.

100mg
500mg

42-1211
amp

2,6-Di-i-propylphenylimidoneophylidene(dipyrrolyl)molybdenum(VI) dimmer [921205-83-6]
C₃₀H₃₇MoN₃; FW: 535.58; yellow to orange pwdr. air sensitive, (store cold)
Technical Note:
1. Precursor for the preparation of a new class of chiral metathesis catalysts.
References:
1. J. Am. Chem. Soc., 2009, 131, 943.
2. J. Am. Chem. Soc., 2009, 131, 3844.

100mg
500mg

amp

2,6-Diisopropylphenylimidoneophylidene molybdenum(VI) bis(t-butoxide) [126949-65-3]
Mo(C₁₀H₁₂)(C₁₂H₁₇N)(OC₄H₉)₂; FW: 549.65; yellow to orange pwdr. air sensitive, moisture sensitive, (store cold)
Note:
This material is covered under US Patents 4,681,956 and 4,727,215 and their foreign equivalents owned by Massachusetts Inst. of Technology.
Technical Note:
1. The "ROMP" catalyst (Mo-F_o) is a relatively mild inititator for the living ROMP of functionalized norbornenes and norbornadienes that do not contain active protons.

References:
1. Ring-Opening Polymerization (D.J. Brunelle, Ed.), 1993, 129.
2. J. Am. Chem. Soc., 1990, 112, 8378.

100mg
500mg
2g

amp

2,6-Diisopropylphenylimidoneophylidene molybdenum(VI) bis(hexafluorot-butoxide) SCHROCK'S CATALYST [139220-25-0]
Mo(C₁₀H₁₂)(C₁₂H₁₇N)[OC(CH₃)(CF₃)₂]₂; FW: 765.53; orange to green pwdr.air sensitive, moisture sensitive, (store cold)
Note:
This material is covered under US Patents 4,681,956 and 4,727,215 and their foreign equivalents owned by Massachusetts Inst. of Technology.
Technical Notes:
1. Unlike Mo(C₁₀H₁₂)(C₁₂H₁₇N)(OC₄H₉)₂, the bis(hexafluoro-t-butoxide) (MoF₆) derivative will metathesize many ordinary olefins, especially terminal olefins, and will ROMP many norbornene or substituted norbornadiene monomers to give all cis, and often isotactic, polymers.
2. Useful for the "ring-closing" of dienes or the coupling of terminal olefins.
3. Useful for cross-metathesis of alphatic alkenes with 2-vinyl aromatics.

42-1205             2,6-Diisopropylphenylimidoneophylidene molybdenum(VI) bis(hexafluorot-butoxide) 
amp                 SCHROCK'S CATALYST [139220-25-0]
(cont.)

100mg
500mg
2g

2,6-Diisopropylphenylimido neophylidenemolybdenum(VI) bis(trifluoromethanesulfonate) dimethoxyethane adduct [126949-63-1]
Mo(C₁₀H₁₂)(C₁₂H₁₇N)(OSO₂CF₃)₂(C₄H₁₀O₂); FW: 791.68; yellow to orange pwdr. air sensitive, moisture sensitive, (store cold)
Note:
This material is covered under US Patents 4,681,956 and 4,727,215 and their foreign equivalents owned by Massachusetts Inst. of Technology.
Technical Notes:
1. Starting material for the preparation of other "ROMP" catalysts. Catalysts can be prepared (even in situ) by adding the appropriate including enantiomerically pure alkoxide ligands such as 3,3'-disubstituted binaphtholates or tartrates.
2. Asymmetric ring closing metathesis of amines.

References:
1. J. Am. Chem. Soc., 1993, 115, 4413.
2. Angew. Chem. Int. Ed., 2001, 40, 1452.
3. Org. Lett., 2003, 5, 4899.

100mg
500mg

42-1212
amp

2,6-Diisopropylphenylimidoneophylidene[racemic-BIPHEN]molybdenum(VI), min. 97% rac-SCHROCK-HOVEYDA CATALYST [300344-02-9]
Mo(C₁₀H₁₂)(C₁₂H₁₇N)(C₂₄H₃₂O₂); FW: 755.93; red xtl. air sensitive, moisture sensitive, (store cold) BIPHEN = 5,5',6,6'-Tetramethyl-3,3'-di-t-butyl-1,1'-biphenyl-2,2'-diol
Technical Note:
1. A ring-closing metathesis catalyst.

100mg
500mg

42-1213
amp

2,6-Diisopropylphenylimidoneophylidene[(R)-(+)-BIPHEN]molybdenum(VI), min. 97% (R) SCHROCK-HOVEYDA CATALYST [329735-77-5]
Mo(C₁₀H₁₂)(C₁₂H₁₇N)(C₂₄H₃₂O₂); FW: 755.93; red xtl. air sensitive, moisture sensitive, (store cold)
Technical Note:
1. See 42-1214.

100mg
500mg

amp

2,6-Diisopropylphenylimidoneophylidene[(S)-(-)-BIPHEN]molybdenum(VI), min. 97% (S) SCHROCK-HOVEYDA CATALYST [205815-80-1]
Mo(C₁₀H₁₂)(C₁₂H₁₇N)(C₂₄H₃₂O₂); FW: 755.93; red xtl. air sensitive, moisture sensitive, (store cold)
Technical Note:
1. The new Schrock-Hoveyda, chiral molybdenum catalyst can effect various modes of enantioselective olefin metathesis with excellent selectivity.

42-1214    2,6-Diisopropylphenylimidoneophylidene[(S)-(-)-BIPHEN]m olybdenum(VI), min. 97% (S) 
  amp        SCHROCK-HOVEYDA CATALYST[205815-80-1]
(cont.)        (a) Kinetic resolution (cont.).

References:
1. J. Am. Chem. Soc., 1998, 120, 4041.
2. J. Am. Chem. Soc., 1999, 121, 8251.
3. Tetrahedron Lett., 2000, 41, 9553.
4. J. Am. Chem. Soc., 1999, 121, 11603.
5. Chem. Eur. J., 2001, 7, 945. (review)
6. Angew. Chem. Int. Ed., 2003, 42, 4592. (review)
7. J. Am. Chem. Soc., 2005, 127, 8526.
8. J. Am. Chem. Soc., 2006, 128, 5153.
9. Angew. Chem. Int. Ed., 2007, 46, 4534.

100mg
500mg

racemic-5,5',6,6'-Tetramethyl-3,3'-di-t-butyl-1,1'-biphenyl-2,2'-diol,99% rac-BIPHEN H₂ [101203-31-0]
C₂₄H₃₄O₂; FW: 354.54; white to off-white xtl.; m.p. 163-165°




Technical Note:
1. See 42-1212.

5g
25g

(R)-(+)-5,5',6,6'-Tetramethyl-3,3'-di-t-butyl-1,1'-biphenyl-2,2'-diol,99% (R)-BIPHEN H₂ [329735-68-4]
C₂₄H₃₄O₂; FW: 354.54; white pwdr.; [α]_D +78° (c 0.352, THF)
Technical Note:
1. See 42-1214.

100mg
500mg
2g

(S)-(-)-5,5',6,6'-Tetramethyl-3,3'-di-t-butyl-1,1'-biphenyl-2,2'-diol, 99% (S)-BIPHEN H₂ [205927-03-3]
C₂₄H₃₄O₂; FW: 354.54; white pwdr.; [α]_D -78° (c 0.352, THF)
Technical Note:
1. See 42-1214.

100mg
500mg
2g

(R)-(-)-5,5',6,6',7,7',8,8'-Octahydro-3,3'-di-t-butyl-1,1'-bi-2-naphthol, dipotassium salt [350683-75-9]
C₂₈H₃₆K₂O₂; FW: 482.80; cream-colored pwdr.; [α]_D -35° (c 1, THF) moisture sensitive


Technical Note:
1. Ligand used in combination with 42-1210 for asymmetric ring closing and ring opening metathesis.

100mg
500mg

(S)-(+)-5,5',6,6',7,7',8,8'-Octahydro-3,3'-di -t-butyl-1,1'-bi-2-naphthol, dipotassium salt
C₂₈H₃₆K₂O₂; FW: 482.80; cream-colored pwdr.; [α]_D +35° (c 1, THF) moisture sensitive
Technical Note:
1. See 19-1600.

100mg
500mg