Cas 434938-27-9,(E)-(4R,5S)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester

434938-27-9

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Product Name: (E)-(4R,5S)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester
Synonyms: (E)-(4R,5S)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester
CAS NO:434938-27-9
Molecular Formula:
Molecular Weight: 671.999
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: (E)-(4R,5S)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: (E)-(4R,5S)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester(434938-27-9)
EPA Substance Registry System: (E)-(4R,5S)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester(434938-27-9)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 434938-27-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 434938-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,4,9,3 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 434938-27:
(8*4)+(7*3)+(6*4)+(5*9)+(4*3)+(3*8)+(2*2)+(1*7)=169
169 % 10 = 9
So 434938-27-9 is a valid CAS Registry Number.

434938-27-9Upstream product

434938-26-8 (E)-(4R,5S)-4-Benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-hex-2-enoic acid (S)-2-[(E)-(1S,2R)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyloxycarbonyl]-1-methyl-ethyl ester

434938-27-9Downstream Products

434938-27-9Relevant academic research and scientific papers

Formal total synthesis of macrosphelide (+)-A, effect on macrolactonization depended upon the lactone formation position

Nakamura, Hiroshi,Ono, Machiko,Makino, Miho,Akita, Hiroyuki

, p. 327 - 336 (2007/10/03)

Formal total synthesis of (+)-macrosphelide A (1) was achieved based on macrolactonization via path B from a seco-acid (3) and path C from a seco-acid (4). The yield of macrolactonization via paths B and C were 18 and 59%, respectively.

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